Bump to 1.47

improve(rules): add mercurial (hg) support

.travis.yml

@@ -6,4 +6,4 @@ python:
 install:
   - python setup.py develop
   - pip install -r requirements.txt
-script: py.test
+script: py.test -v

README.md

@@ -1,5 +1,7 @@
 # The Fuck [![Build Status](https://travis-ci.org/nvbn/thefuck.svg)](https://travis-ci.org/nvbn/thefuck)
 
+**Aliases changed in 1.34.**
+
 Magnificent app which corrects your previous console command,
 inspired by a [@liamosaur](https://twitter.com/liamosaur/)
 [tweet](https://twitter.com/liamosaur/status/506975850596536320).
@@ -71,7 +73,7 @@ REPL-y 0.3.1
 ...
 ```
 
-If you are scared to blindly run changed command, there's `require_confirmation`
+If you are scared to blindly run the changed command, there is a `require_confirmation`
 [settings](#settings) option:
 
 ```bash
@@ -88,8 +90,8 @@ Reading package lists... Done
 
 ## Requirements
 
+- python (2.7+ or 3.3+)
 - pip
-- python
 - python-dev
 
 ## Installation
@@ -100,41 +102,37 @@ Install `The Fuck` with `pip`:
 sudo pip install thefuck
 ```
 
-If it fails try to use `easy_install`:
+[Or using an OS package manager (OS X, Ubuntu, Arch).](https://github.com/nvbn/thefuck/wiki/Installation)
+
+And add to the `.bashrc` or `.bash_profile`(for OSX):
 
 ```bash
-sudo easy_install thefuck
-```
-
-And add to `.bashrc` or `.zshrc` or `.bash_profile`(for OSX):
-
-```bash
-alias fuck='$(thefuck $(fc -ln -1))'
-# You can use whatever you want as an alias, like for mondays:
+alias fuck='eval $(thefuck $(fc -ln -1)); history -r'
+# You can use whatever you want as an alias, like for Mondays:
 alias FUCK='fuck'
 ```
 
-Or in `config.fish`:
+Or in your `.zshrc`:
 
-```fish
-function fuck
-    eval (thefuck $history[1])
-end
+```bash
+alias fuck='eval $(thefuck $(fc -ln -1 | tail -n 1)); fc -R'
 ```
 
-Or in your Powershell `$PROFILE` on Windows:
-
-```powershell
-function fuck { 
-    $fuck = $(thefuck (get-history -count 1).commandline)
-    if($fuck.startswith("echo")) { 
-        $fuck.substring(5) 
-    } 
-    else { iex "$fuck" } 
-}
+If you are using `tcsh`:
+```tcsh
+alias fuck 'set fucked_cmd=`history -h 2 | head -n 1` && eval `thefuck ${fucked_cmd}`'
 ```
 
+Alternatively, you can redirect the output of `thefuck-alias`:
+
+```bash
+thefuck-alias >> ~/.bashrc
+```
+
+[Or in your shell config (Bash, Zsh, Fish, Powershell).](https://github.com/nvbn/thefuck/wiki/Shell-aliases)
+
 Changes will be available only in a new shell session.
+To make them available immediately, run `source ~/.bashrc` (or your shell config file like `.zshrc`).
 
 
 ## Update
@@ -145,21 +143,68 @@ sudo pip install thefuck --upgrade
 
 ## How it works
 
-The Fuck tries to match rule for the previous command, create new command
-using matched rule and run it. Rules enabled by default:
+The Fuck tries to match a rule for the previous command, creates a new command
+using the matched rule and runs it. Rules enabled by default are as follows:
 
+* `cargo` – runs `cargo build` instead of `cargo`;
+* `cargo_no_command` – fixes wrongs commands like `cargo buid`;
+* `cd_correction` – spellchecks and correct failed cd commands;
+* `cd_mkdir` – creates directories before cd'ing into them;
 * `cd_parent` – changes `cd..` to `cd ..`;
+* `composer_not_command` – fixes composer command name;
 * `cp_omitting_directory` – adds `-a` when you `cp` directory;
+* `cpp11` – add missing `-std=c++11` to `g++` or `clang++`;
+* `django_south_ghost` – adds `--delete-ghost-migrations` to failed because ghosts django south migration;
+* `django_south_merge` – adds `--merge` to inconsistent django south migration;
+* `dry` – fix repetitions like "git git push";
+* `fix_alt_space` – replaces Alt+Space with Space character;
+* `git_add` – fix *"Did you forget to 'git add'?"*;
+* `git_branch_list` – catches `git branch list` in place of `git branch` and removes created branch;
+* `git_checkout` – creates the branch before checking-out;
+* `git_diff_staged` – adds `--staged` to previous `git diff` with unexpected output;
 * `git_no_command` – fixes wrong git commands like `git brnch`;
+* `git_pull` – sets upstream before executing previous `git pull`;
 * `git_push` – adds `--set-upstream origin $branch` to previous failed `git push`;
+* `git_stash` – stashes you local modifications before rebasing or switching branch;
+* `go_run` – appends `.go` extension when compiling/running Go programs
+* `grep_recursive` – adds `-r` when you trying to grep directory;
 * `has_exists_script` – prepends `./` when script/binary exists;
+* `java` – removes `.java` extension when running Java programs;
+* `javac` – appends missing `.java` when compiling Java files;
 * `lein_not_task` – fixes wrong `lein` tasks like `lein rpl`;
+* `ls_lah` – adds -lah to ls;
+* `man` – change manual section;
+* `man_no_space` – fixes man commands without spaces, for example `mandiff`;
 * `mkdir_p` – adds `-p` when you trying to create directory without parent;
 * `no_command` – fixes wrong console commands, for example `vom/vim`;
+* `no_such_file` – creates missing directories with `mv` and `cp` commands;
+* `open` – prepends `http` to address passed to `open`;
+* `pip_unknown_command` – fixes wrong pip commands, for example `pip instatl/pip install`;
 * `python_command` – prepends `python` when you trying to run not executable/without `./` python script;
+* `python_execute` – appends missing `.py` when executing Python files;
+* `quotation_marks` – fixes uneven usage of `'` and `"` when containing args'
 * `rm_dir` – adds `-rf` when you trying to remove directory;
+* `sed` – adds missing '/' to `sed`'s `s` commands;
+* `sl_ls` – changes `sl` to `ls`;
+* `ssh_known_hosts` – removes host from `known_hosts` on warning;
 * `sudo` – prepends `sudo` to previous command if it failed because of permissions;
-* `switch_layout` – switches command from your local layout to en.
+* `switch_layout` – switches command from your local layout to en;
+* `systemctl` – correctly orders parameters of confusing systemctl;
+* `test.py` – runs `py.test` instead of `test.py`;
+* `tmux` – fixes tmux commands;
+* `whois` – fixes `whois` command.
+
+Enabled by default only on specific platforms:
+
+* `apt_get` – installs app from apt if it not installed;
+* `brew_install` – fixes formula name for `brew install`;
+* `brew_unknown_command` – fixes wrong brew commands, for example `brew docto/brew doctor`;
+* `brew_upgrade` – appends `--all` to `brew upgrade` as per Homebrew's new behaviour
+* `pacman` – installs app with `pacman` or `yaourt` if it is not installed.
+
+Bundled, but not enabled by default:
+
+* `rm_root` – adds `--no-preserve-root` to `rm -rf /` command.
 
 ## Creating your own rules
 
@@ -167,10 +212,13 @@ For adding your own rule you should create `your-rule-name.py`
 in `~/.thefuck/rules`. Rule should contain two functions:
 `match(command: Command, settings: Settings) -> bool`
 and `get_new_command(command: Command, settings: Settings) -> str`.
+Also the rule can contain optional function
+`side_effect(command: Command, settings: Settings) -> None` and
+optional boolean `enabled_by_default`.
 
 `Command` has three attributes: `script`, `stdout` and `stderr`.
 
-`Settings` is `~/.thefuck/settings.py`.
+`Settings` is a special object filled with `~/.thefuck/settings.py` and values from env, [more](#settings).
 
 Simple example of the rule for running script with `sudo`:
 
@@ -182,6 +230,14 @@ def match(command, settings):
 
 def get_new_command(command, settings):
     return 'sudo {}'.format(command.script)
+
+# Optional:
+enabled_by_default = True
+
+def side_effect(command, settings):
+    subprocess.call('chmod 777 .', shell=True)
+
+priority = 1000  # Lower first
 ```
 
 [More examples of rules](https://github.com/nvbn/thefuck/tree/master/thefuck/rules),
@@ -189,11 +245,42 @@ def get_new_command(command, settings):
 
 ## Settings
 
-The Fuck has a few settings parameters, they can be changed in `~/.thefuck/settings.py`:
+The Fuck has a few settings parameters which can be changed in `~/.thefuck/settings.py`:
 
-* `rules` – list of enabled rules, by default all;
-* `require_confirmation` – require confirmation before running new command, by default `False`; 
-* `wait_command` – max amount of time in seconds for getting previous command output.
+* `rules` – list of enabled rules, by default `thefuck.conf.DEFAULT_RULES`;
+* `require_confirmation` – requires confirmation before running new command, by default `False`;
+* `wait_command` – max amount of time in seconds for getting previous command output;
+* `no_colors` – disable colored output;
+* `priority` – dict with rules priorities, rule with lower `priority` will be matched first.
+
+Example of `settings.py`:
+
+```python
+rules = ['sudo', 'no_command']
+require_confirmation = True
+wait_command = 10
+no_colors = False
+priority = {'sudo': 100, 'no_command': 9999}
+```
+
+Or via environment variables:
+
+* `THEFUCK_RULES` – list of enabled rules, like `DEFAULT_RULES:rm_root` or `sudo:no_command`;
+* `THEFUCK_REQUIRE_CONFIRMATION` – require confirmation before running new command, `true/false`;
+* `THEFUCK_WAIT_COMMAND` – max amount of time in seconds for getting previous command output;
+* `THEFUCK_NO_COLORS` – disable colored output, `true/false`;
+* `THEFUCK_PRIORITY` – priority of the rules, like `no_command=9999:apt_get=100`,
+rule with lower `priority` will be matched first.
+
+For example:
+
+```bash
+export THEFUCK_RULES='sudo:no_command'
+export THEFUCK_REQUIRE_CONFIRMATION='true'
+export THEFUCK_WAIT_COMMAND=10
+export THEFUCK_NO_COLORS='false'
+export THEFUCK_PRIORITY='no_command=9999:apt_get=100'
+```
 
 ## Developing
 

release.py

@@ -28,4 +28,4 @@ call('git commit -am "Bump to {}"'.format(version), shell=True)
 call('git tag {}'.format(version), shell=True)
 call('git push', shell=True)
 call('git push --tags', shell=True)
-call('python setup.py sdist upload', shell=True)
+call('python setup.py sdist bdist_wheel upload', shell=True)

requirements.txt

@@ -1,2 +1,4 @@
 pytest
 mock
+pytest-mock
+wheel

setup.cfg

@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal = 1

setup.py

@@ -1,8 +1,22 @@
+#!/usr/bin/env python
 from setuptools import setup, find_packages
+import sys
 
+if sys.version_info < (2, 7):
+    print('thefuck requires Python version 2.7 or later' +
+          ' ({}.{} detected).'.format(*sys.version_info[:2]))
+    sys.exit(-1)
+elif (3, 0) < sys.version_info < (3, 3):
+    print('thefuck requires Python version 3.3 or later' +
+          ' ({}.{} detected).'.format(*sys.version_info[:2]))
+    sys.exit(-1)
 
-VERSION = '1.26'
+VERSION = '1.47'
 
+install_requires = ['psutil', 'colorama', 'six']
+
+if sys.version_info < (3, 4):
+    install_requires.append('pathlib')
 
 setup(name='thefuck',
       version=VERSION,
@@ -15,6 +29,7 @@ setup(name='thefuck',
                                       'tests', 'release']),
       include_package_data=True,
       zip_safe=False,
-      install_requires=['pathlib', 'psutil'],
+      install_requires=install_requires,
       entry_points={'console_scripts': [
-          'thefuck = thefuck.main:main']})
+          'thefuck = thefuck.main:main',
+          'thefuck-alias = thefuck.shells:app_alias']})

tests/rules/conftest.py

@@ -0,0 +1,6 @@
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def generic_shell(monkeypatch):
+    monkeypatch.setattr('thefuck.shells.and_', lambda *x: ' && '.join(x))

tests/rules/test_apt_get.py

@@ -0,0 +1,59 @@
+import pytest
+from mock import Mock, patch
+from thefuck.rules import apt_get
+from thefuck.rules.apt_get import match, get_new_command
+from tests.utils import Command
+
+
+# python-commandnotfound is available in ubuntu 14.04+
+@pytest.mark.skipif(not getattr(apt_get, 'enabled_by_default', True),
+                    reason='Skip if python-commandnotfound is not available')
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr='vim: command not found')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, return_value', [
+    (Command(script='vim', stderr='vim: command not found'),
+     [('vim', 'main'), ('vim-tiny', 'main')])])
+@patch('thefuck.rules.apt_get.CommandNotFound', create=True)
+@patch.multiple(apt_get, create=True, apt_get='apt_get')
+def test_match_mocked(cmdnf_mock, command, return_value):
+    get_packages = Mock(return_value=return_value)
+    cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
+    assert match(command, None)
+    assert cmdnf_mock.CommandNotFound.called
+    assert get_packages.called
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr=''), Command()])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+# python-commandnotfound is available in ubuntu 14.04+
+@pytest.mark.skipif(not getattr(apt_get, 'enabled_by_default', True),
+                    reason='Skip if python-commandnotfound is not available')
+@pytest.mark.parametrize('command, new_command', [
+    (Command('vim'), 'sudo apt-get install vim && vim'),
+    (Command('convert'), 'sudo apt-get install imagemagick && convert')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command
+
+
+@pytest.mark.parametrize('command, new_command, return_value', [
+    (Command('vim'), 'sudo apt-get install vim && vim',
+     [('vim', 'main'), ('vim-tiny', 'main')]),
+    (Command('convert'), 'sudo apt-get install imagemagick && convert',
+     [('imagemagick', 'main'),
+      ('graphicsmagick-imagemagick-compat', 'universe')])])
+@patch('thefuck.rules.apt_get.CommandNotFound', create=True)
+@patch.multiple(apt_get, create=True, apt_get='apt_get')
+def test_get_new_command_mocked(cmdnf_mock, command, new_command, return_value):
+    get_packages = Mock(return_value=return_value)
+    cmdnf_mock.CommandNotFound.return_value = Mock(getPackages=get_packages)
+    assert get_new_command(command, None) == new_command
+    assert cmdnf_mock.CommandNotFound.called
+    assert get_packages.called

tests/rules/test_brew_install.py

@@ -0,0 +1,49 @@
+import pytest
+from thefuck.rules.brew_install import match, get_new_command
+from thefuck.rules.brew_install import brew_formulas
+from tests.utils import Command
+
+
+@pytest.fixture
+def brew_no_available_formula():
+    return '''Error: No available formula for elsticsearch '''
+
+
+@pytest.fixture
+def brew_install_no_argument():
+    return '''This command requires a formula argument'''
+
+
+@pytest.fixture
+def brew_already_installed():
+    return '''Warning: git-2.3.5 already installed'''
+
+
+def _is_not_okay_to_test():
+    if 'elasticsearch' not in brew_formulas:
+        return True
+    return False
+
+
+@pytest.mark.skipif(_is_not_okay_to_test(),
+                    reason='No need to run if there\'s no formula')
+def test_match(brew_no_available_formula, brew_already_installed,
+               brew_install_no_argument):
+    assert match(Command('brew install elsticsearch',
+                         stderr=brew_no_available_formula), None)
+    assert not match(Command('brew install git',
+                             stderr=brew_already_installed), None)
+    assert not match(Command('brew install', stderr=brew_install_no_argument),
+                     None)
+
+
+@pytest.mark.skipif(_is_not_okay_to_test(),
+                    reason='No need to run if there\'s no formula')
+def test_get_new_command(brew_no_available_formula):
+    assert get_new_command(Command('brew install elsticsearch',
+                                   stderr=brew_no_available_formula), None)\
+        == 'brew install elasticsearch'
+
+    assert get_new_command(Command('brew install aa',
+                                   stderr=brew_no_available_formula),
+                           None) != 'brew install aha'

tests/rules/test_brew_unknown_command.py

@@ -0,0 +1,28 @@
+import pytest
+from thefuck.rules.brew_unknown_command import match, get_new_command
+from thefuck.rules.brew_unknown_command import brew_commands
+from tests.utils import Command
+
+
+@pytest.fixture
+def brew_unknown_cmd():
+    return '''Error: Unknown command: inst'''
+
+
+@pytest.fixture
+def brew_unknown_cmd2():
+    return '''Error: Unknown command: instaa'''
+
+
+def test_match(brew_unknown_cmd):
+    assert match(Command('brew inst', stderr=brew_unknown_cmd), None)
+    for command in brew_commands:
+        assert not match(Command('brew ' + command), None)
+
+
+def test_get_new_command(brew_unknown_cmd, brew_unknown_cmd2):
+    assert get_new_command(Command('brew inst', stderr=brew_unknown_cmd),
+                           None) == 'brew list'
+
+    assert get_new_command(Command('brew instaa', stderr=brew_unknown_cmd2),
+                           None) == 'brew install'

tests/rules/test_brew_upgrade.py

@@ -0,0 +1,15 @@
+import pytest
+from thefuck.rules.brew_upgrade import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='brew upgrade')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('brew upgrade'), 'brew upgrade --all')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_cargo_no_command.py

@@ -0,0 +1,21 @@
+import pytest
+from thefuck.rules.cargo_no_command import match, get_new_command
+from tests.utils import Command
+
+
+no_such_subcommand = """No such subcommand
+
+        Did you mean `build`?
+"""
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='cargo buid', stderr=no_such_subcommand)])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('cargo buid', stderr=no_such_subcommand), 'cargo build')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_cd_mkdir.py

@@ -0,0 +1,25 @@
+import pytest
+from thefuck.rules.cd_mkdir import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='cd foo', stderr='cd: foo: No such file or directory'),
+    Command(script='cd foo/bar/baz',
+            stderr='cd: foo: No such file or directory'),
+    Command(script='cd foo/bar/baz', stderr='cd: can\'t cd to foo/bar/baz')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='cd foo', stderr=''), Command()])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('cd foo'), 'mkdir -p foo && cd foo'),
+    (Command('cd foo/bar/baz'), 'mkdir -p foo/bar/baz && cd foo/bar/baz')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_cd_parent.py

@@ -1,12 +1,12 @@
-from thefuck.main import Command
 from thefuck.rules.cd_parent import match, get_new_command
+from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('cd..', '', 'cd..: command not found'), None)
-    assert not match(Command('', '', ''), None)
+    assert match(Command('cd..', stderr='cd..: command not found'), None)
+    assert not match(Command(), None)
 
 
 def test_get_new_command():
     assert get_new_command(
-        Command('cd..', '', ''), None) == 'cd ..'
+        Command('cd..'), None) == 'cd ..'

tests/rules/test_composer_not_command.py

@@ -0,0 +1,53 @@
+import pytest
+from thefuck.rules.composer_not_command import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def composer_not_command():
+    return """
+
+                                    
+  [InvalidArgumentException]        
+  Command "udpate" is not defined.  
+  Did you mean this?                
+      update
+
+
+"""
+
+
+@pytest.fixture
+def composer_not_command_one_of_this():
+    return """
+                            
+
+
+  [InvalidArgumentException]       
+  Command "pdate" is not defined.  
+  Did you mean one of these?       
+      selfupdate                   
+      self-update                  
+      update                       
+
+
+
+"""
+
+
+def test_match(composer_not_command, composer_not_command_one_of_this):
+    assert match(Command('composer udpate',
+                         stderr=composer_not_command), None)
+    assert match(Command('composer pdate',
+                         stderr=composer_not_command_one_of_this), None)
+    assert not match(Command('ls update', stderr=composer_not_command),
+                     None)
+
+
+def test_get_new_command(composer_not_command, composer_not_command_one_of_this):
+    assert get_new_command(Command('composer udpate',
+                                   stderr=composer_not_command), None) \
+           == 'composer update'
+    assert get_new_command(
+        Command('composer pdate', stderr=composer_not_command_one_of_this),
+        None) == 'composer selfupdate'

tests/rules/test_django_south_ghost.py

@@ -0,0 +1,53 @@
+import pytest
+from thefuck.rules.django_south_ghost import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''Traceback (most recent call last):
+  File "/home/nvbn/work/.../bin/python", line 42, in <module>
+    exec(compile(__file__f.read(), __file__, "exec"))
+  File "/home/nvbn/work/.../app/manage.py", line 34, in <module>
+    execute_from_command_line(sys.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 443, in execute_from_command_line
+    utility.execute()
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 382, in execute
+    self.fetch_command(subcommand).run_from_argv(self.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 196, in run_from_argv
+    self.execute(*args, **options.__dict__)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 232, in execute
+    output = self.handle(*args, **options)
+  File "/home/nvbn/work/.../app/lib/south/management/commands/migrate.py", line 108, in handle
+    ignore_ghosts = ignore_ghosts,
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 193, in migrate_app
+    applied_all = check_migration_histories(applied_all, delete_ghosts, ignore_ghosts)
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 88, in check_migration_histories
+    raise exceptions.GhostMigrations(ghosts)
+south.exceptions.GhostMigrations: 
+
+ ! These migrations are in the database but not on disk:
+    <app1: 0033_auto__...>
+    <app1: 0034_fill_...>
+    <app1: 0035_rename_...>
+    <app2: 0003_add_...>
+    <app2: 0004_denormalize_...>
+    <app1: 0033_auto....>
+    <app1: 0034_fill...>
+ ! I'm not trusting myself; either fix this yourself by fiddling
+ ! with the south_migrationhistory table, or pass --delete-ghost-migrations
+ ! to South to have it delete ALL of these records (this may not be good).
+'''
+
+
+def test_match(stderr):
+    assert match(Command('./manage.py migrate', stderr=stderr), None)
+    assert match(Command('python manage.py migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py migrate'), None)
+    assert not match(Command('app migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py test', stderr=stderr), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command('./manage.py migrate auth'), None)\
+        == './manage.py migrate auth --delete-ghost-migrations'

tests/rules/test_django_south_merge.py

@@ -0,0 +1,43 @@
+import pytest
+from thefuck.rules.django_south_merge import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''Running migrations for app:
+ ! Migration app:0003_auto... should not have been applied before app:0002_auto__add_field_query_due_date_ but was.
+Traceback (most recent call last):
+  File "/home/nvbn/work/.../bin/python", line 42, in <module>
+    exec(compile(__file__f.read(), __file__, "exec"))
+  File "/home/nvbn/work/.../app/manage.py", line 34, in <module>
+    execute_from_command_line(sys.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 443, in execute_from_command_line
+    utility.execute()
+  File "/home/nvbn/work/.../lib/django/core/management/__init__.py", line 382, in execute
+    self.fetch_command(subcommand).run_from_argv(self.argv)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 196, in run_from_argv
+    self.execute(*args, **options.__dict__)
+  File "/home/nvbn/work/.../lib/django/core/management/base.py", line 232, in execute
+    output = self.handle(*args, **options)
+  File "/home/nvbn/work/.../app/lib/south/management/commands/migrate.py", line 108, in handle
+    ignore_ghosts = ignore_ghosts,
+  File "/home/nvbn/work/.../app/lib/south/migration/__init__.py", line 207, in migrate_app
+    raise exceptions.InconsistentMigrationHistory(problems)
+south.exceptions.InconsistentMigrationHistory: Inconsistent migration history
+The following options are available:
+    --merge: will just attempt the migration ignoring any potential dependency conflicts.
+'''
+
+
+def test_match(stderr):
+    assert match(Command('./manage.py migrate', stderr=stderr), None)
+    assert match(Command('python manage.py migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py migrate'), None)
+    assert not match(Command('app migrate', stderr=stderr), None)
+    assert not match(Command('./manage.py test', stderr=stderr), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command('./manage.py migrate auth'), None) \
+           == './manage.py migrate auth --merge'

tests/rules/test_dry.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.dry import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='cd cd foo'),
+    Command(script='git git push origin/master')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('cd cd foo'), 'cd foo'),
+    (Command('git git push origin/master'), 'git push origin/master')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_fix_alt_space.py

@@ -0,0 +1,22 @@
+# -*- encoding: utf-8 -*-
+
+from thefuck.rules.fix_alt_space import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    """The character before 'grep' is Alt+Space, which happens frequently
+    on the Mac when typing the pipe character (Alt+7), and holding the Alt
+    key pressed for longer than necessary.
+
+    """
+    assert match(Command(u'ps -ef | grep foo',
+                         stderr=u'-bash:  grep: command not found'), None)
+    assert not match(Command('ps -ef | grep foo'), None)
+    assert not match(Command(), None)
+
+
+def test_get_new_command():
+    """ Replace the Alt+Space character by a simple space """
+    assert get_new_command(Command(u'ps -ef | grep foo'), None)\
+           == 'ps -ef | grep foo'

tests/rules/test_git_add.py

@@ -0,0 +1,39 @@
+import pytest
+from thefuck.rules.git_add import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def did_not_match(target, did_you_forget=True):
+    error = ("error: pathspec '{}' did not match any "
+             "file(s) known to git.".format(target))
+    if did_you_forget:
+        error = ("{}\nDid you forget to 'git add'?'".format(error))
+    return error
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git submodule update unknown',
+            stderr=did_not_match('unknown')),
+    Command(script='git commit unknown',
+            stderr=did_not_match('unknown'))])  # Older versions of Git
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git submodule update known', stderr=('')),
+    Command(script='git commit known', stderr=('')),
+    Command(script='git commit unknown',  # Newer versions of Git
+            stderr=did_not_match('unknown', False))])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('git submodule update unknown', stderr=did_not_match('unknown')),
+     'git add -- unknown && git submodule update unknown'),
+    (Command('git commit unknown', stderr=did_not_match('unknown')),  # Old Git
+     'git add -- unknown && git commit unknown')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_git_branch_list.py

@@ -0,0 +1,18 @@
+from thefuck import shells
+from thefuck.rules.git_branch_list import match, get_new_command
+from tests.utils import Command
+
+def test_match():
+    assert match(Command('git branch list'), None)
+
+
+def test_not_match():
+    assert not match(Command(), None)
+    assert not match(Command('git commit'), None)
+    assert not match(Command('git branch'), None)
+    assert not match(Command('git stash list'), None)
+
+
+def test_get_new_command():
+    assert (get_new_command(Command('git branch list'), None) ==
+            shells.and_('git branch --delete list', 'git branch'))

tests/rules/test_git_checkout.py

@@ -0,0 +1,37 @@
+import pytest
+from thefuck.rules.git_checkout import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def did_not_match(target, did_you_forget=False):
+    error = ("error: pathspec '{}' did not match any "
+             "file(s) known to git.".format(target))
+    if did_you_forget:
+        error = ("{}\nDid you forget to 'git add'?'".format(error))
+    return error
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git checkout unknown', stderr=did_not_match('unknown')),
+    Command(script='git commit unknown', stderr=did_not_match('unknown'))])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git submodule update unknown',
+            stderr=did_not_match('unknown', True)),
+    Command(script='git checkout known', stderr=('')),
+    Command(script='git commit known', stderr=(''))])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='git checkout unknown', stderr=did_not_match('unknown')),
+     'git branch unknown && git checkout unknown'),
+    (Command('git commit unknown', stderr=did_not_match('unknown')),
+     'git branch unknown && git commit unknown')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_git_diff_staged.py

@@ -0,0 +1,27 @@
+import pytest
+from thefuck.rules.git_diff_staged import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git diff'),
+    Command(script='git df'),
+    Command(script='git ds')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git tag'),
+    Command(script='git branch'),
+    Command(script='git log')])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('git diff'), 'git diff --staged'),
+    (Command('git df'), 'git df --staged'),
+    (Command('git ds'), 'git ds --staged')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_git_not_command.py

@@ -1,6 +1,6 @@
 import pytest
-from thefuck.main import Command
 from thefuck.rules.git_not_command import match, get_new_command
+from tests.utils import Command
 
 
 @pytest.fixture
@@ -31,14 +31,14 @@ def git_command():
 
 
 def test_match(git_not_command, git_command, git_not_command_one_of_this):
-    assert match(Command('git brnch', '', git_not_command), None)
-    assert match(Command('git st', '', git_not_command_one_of_this), None)
-    assert not match(Command('ls brnch', '', git_not_command), None)
-    assert not match(Command('git branch', '', git_command), None)
+    assert match(Command('git brnch', stderr=git_not_command), None)
+    assert match(Command('git st', stderr=git_not_command_one_of_this), None)
+    assert not match(Command('ls brnch', stderr=git_not_command), None)
+    assert not match(Command('git branch', stderr=git_command), None)
 
 
 def test_get_new_command(git_not_command, git_not_command_one_of_this):
-    assert get_new_command(Command('git brnch', '', git_not_command), None)\
+    assert get_new_command(Command('git brnch', stderr=git_not_command), None)\
         == 'git branch'
-    assert get_new_command(
-        Command('git st', '', git_not_command_one_of_this), None) == 'git status'
+    assert get_new_command(Command('git st', stderr=git_not_command_one_of_this),
+                           None) == 'git status'

tests/rules/test_git_pull.py

@@ -0,0 +1,29 @@
+import pytest
+from thefuck.rules.git_pull import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def stderr():
+    return '''There is no tracking information for the current branch.
+Please specify which branch you want to merge with.
+See git-pull(1) for details
+
+    git pull <remote> <branch>
+
+If you wish to set tracking information for this branch you can do so with:
+
+    git branch --set-upstream-to=<remote>/<branch> master
+
+'''
+
+
+def test_match(stderr):
+    assert match(Command('git pull', stderr=stderr), None)
+    assert not match(Command('git pull'), None)
+    assert not match(Command('ls', stderr=stderr), None)
+
+
+def test_get_new_command(stderr):
+    assert get_new_command(Command('git pull', stderr=stderr), None) \
+           == "git branch --set-upstream-to=origin/master master && git pull"

tests/rules/test_git_push.py

@@ -1,6 +1,6 @@
 import pytest
-from thefuck.main import Command
 from thefuck.rules.git_push import match, get_new_command
+from tests.utils import Command
 
 
 @pytest.fixture
@@ -14,11 +14,11 @@ To push the current branch and set the remote as upstream, use
 
 
 def test_match(stderr):
-    assert match(Command('git push master', '', stderr), None)
-    assert not match(Command('git push master', '', ''), None)
-    assert not match(Command('ls', '', stderr), None)
+    assert match(Command('git push master', stderr=stderr), None)
+    assert not match(Command('git push master'), None)
+    assert not match(Command('ls', stderr=stderr), None)
 
 
 def test_get_new_command(stderr):
-    assert get_new_command(Command('', '', stderr), None)\
+    assert get_new_command(Command(stderr=stderr), None)\
         == "git push --set-upstream origin master"

tests/rules/test_git_stash.py

@@ -0,0 +1,39 @@
+import pytest
+from thefuck.rules.git_stash import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def cherry_pick_error():
+    return ('error: Your local changes would be overwritten by cherry-pick.\n'
+            'hint: Commit your changes or stash them to proceed.\n'
+            'fatal: cherry-pick failed')
+
+
+@pytest.fixture
+def rebase_error():
+    return ('Cannot rebase: Your index contains uncommitted changes.\n'
+            'Please commit or stash them.')
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git cherry-pick a1b2c3d', stderr=cherry_pick_error()),
+    Command(script='git rebase -i HEAD~7', stderr=rebase_error())])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='git cherry-pick a1b2c3d', stderr=('')),
+    Command(script='git rebase -i HEAD~7', stderr=(''))])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='git cherry-pick a1b2c3d', stderr=cherry_pick_error),
+     'git stash && git cherry-pick a1b2c3d'),
+    (Command('git rebase -i HEAD~7', stderr=rebase_error),
+     'git stash && git rebase -i HEAD~7')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_go_run.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.go_run import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='go run foo'), 
+    Command(script='go run bar')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('go run foo'), 'go run foo.go'),
+    (Command('go run bar'), 'go run bar.go')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_grep_recursive.py

@@ -0,0 +1,12 @@
+from thefuck.rules.grep_recursive import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    assert match(Command('grep blah .', stderr='grep: .: Is a directory'), None)
+    assert not match(Command(), None)
+
+
+def test_get_new_command():
+    assert get_new_command(
+        Command('grep blah .'), None) == 'grep -r blah .'

tests/rules/test_has_exists_script.py

@@ -1,5 +1,5 @@
 from mock import Mock, patch
-from thefuck.rules. has_exists_script import match, get_new_command
+from thefuck.rules.has_exists_script import match, get_new_command
 
 
 def test_match():

tests/rules/test_java.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.java import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='java foo.java'),
+    Command(script='java bar.java')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('java foo.java'), 'java foo'),
+    (Command('java bar.java'), 'java bar')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_javac.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.javac import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='javac foo'),
+    Command(script='javac bar')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('javac foo'), 'javac foo.java'),
+    (Command('javac bar'), 'javac bar.java')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_ls_lah.py

@@ -0,0 +1,16 @@
+from mock import patch, Mock
+from thefuck.rules.ls_lah import match, get_new_command
+
+
+def test_match():
+    assert match(Mock(script='ls'), None)
+    assert match(Mock(script='ls file.py'), None)
+    assert match(Mock(script='ls /opt'), None)
+    assert not match(Mock(script='ls -lah /opt'), None)
+    assert not match(Mock(script='pacman -S binutils'), None)
+    assert not match(Mock(script='lsof'), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Mock(script='ls file.py'), None) == 'ls -lah file.py'
+    assert get_new_command(Mock(script='ls'), None) == 'ls -lah'

tests/rules/test_man.py

@@ -0,0 +1,34 @@
+import pytest
+from thefuck.rules.man import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command('man read'),
+    Command('man 2 read'),
+    Command('man 3 read'),
+    Command('man -s2 read'),
+    Command('man -s3 read'),
+    Command('man -s 2 read'),
+    Command('man -s 3 read')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command('man'),
+    Command('man ')])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('man read'), 'man 3 read'),
+    (Command('man 2 read'), 'man 3 read'),
+    (Command('man 3 read'), 'man 2 read'),
+    (Command('man -s2 read'), 'man -s3 read'),
+    (Command('man -s3 read'), 'man -s2 read'),
+    (Command('man -s 2 read'), 'man -s 3 read'),
+    (Command('man -s 3 read'), 'man -s 2 read')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_man_no_space.py

@@ -0,0 +1,12 @@
+from thefuck.rules.man_no_space import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    assert match(Command('mandiff', stderr='mandiff: command not found'), None)
+    assert not match(Command(), None)
+
+
+def test_get_new_command():
+    assert get_new_command(
+        Command('mandiff'), None) == 'man diff'

tests/rules/test_mercurial.py

@@ -0,0 +1,134 @@
+import pytest
+
+from tests.utils import Command
+from thefuck.rules.mercurial import (
+    extract_possisiblities, match, get_new_command
+)
+
+
+@pytest.mark.parametrize('command', [
+    Command('hg base', stderr=(
+        "hg: unknown command 'base'"
+        '\n(did you mean one of blame, phase, rebase?)'
+    )),
+    Command('hg branchch', stderr=(
+        "hg: unknown command 'branchch'"
+        '\n(did you mean one of branch, branches?)'
+    )),
+    Command('hg vert', stderr=(
+        "hg: unknown command 'vert'"
+        '\n(did you mean one of revert?)'
+    )),
+    Command('hg lgo -r tip', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n(did you mean one of log?)'
+    )),
+    Command('hg rerere', stderr=(
+        "hg: unknown command 'rerere'"
+        '\n(did you mean one of revert?)'
+    )),
+    Command('hg re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )),
+    Command('hg re re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )),
+])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command('hg', stderr=(
+        '\nMercurial Distributed SCM\n\nbasic commands:'
+    )),
+    Command('hg asdf', stderr=(
+        "hg: unknown command 'asdf'"
+        '\nMercurial Distributed SCM\n\nbasic commands:'
+    )),
+    Command('hg qwer', stderr=(
+        "hg: unknown command 'qwer'"
+        '\nMercurial Distributed SCM\n\nbasic commands:'
+    )),
+    Command('hg me', stderr=(
+        "\nabort: no repository found in './thefuck' (.hg not found)!"
+    )),
+    Command('hg reb', stderr=(
+        "\nabort: no repository found in './thefuck' (.hg not found)!"
+    )),
+    Command('hg co', stderr=(
+        "\nabort: no repository found in './thefuck' (.hg not found)!"
+    )),
+])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.parametrize('command, possibilities', [
+    (Command('hg base', stderr=(
+        "hg: unknown command 'base'"
+        '\n(did you mean one of blame, phase, rebase?)'
+    )), ['blame', 'phase', 'rebase']),
+    (Command('hg branchch', stderr=(
+        "hg: unknown command 'branchch'"
+        '\n(did you mean one of branch, branches?)'
+    )), ['branch', 'branches']),
+    (Command('hg vert', stderr=(
+        "hg: unknown command 'vert'"
+        '\n(did you mean one of revert?)'
+    )), ['revert']),
+    (Command('hg lgo -r tip', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n(did you mean one of log?)'
+    )), ['log']),
+    (Command('hg rerere', stderr=(
+        "hg: unknown command 'rerere'"
+        '\n(did you mean one of revert?)'
+    )), ['revert']),
+    (Command('hg re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )), ['rebase', 'recover', 'remove', 'rename', 'resolve', 'revert']),
+    (Command('hg re re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )), ['rebase', 'recover', 'remove', 'rename', 'resolve', 'revert']),
+])
+def test_extract_possisiblities(command, possibilities):
+    assert extract_possisiblities(command) == possibilities
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('hg base', stderr=(
+        "hg: unknown command 'base'"
+        '\n(did you mean one of blame, phase, rebase?)'
+    )), 'hg rebase'),
+    (Command('hg branchch', stderr=(
+        "hg: unknown command 'branchch'"
+        '\n(did you mean one of branch, branches?)'
+    )), 'hg branch'),
+    (Command('hg vert', stderr=(
+        "hg: unknown command 'vert'"
+        '\n(did you mean one of revert?)'
+    )), 'hg revert'),
+    (Command('hg lgo -r tip', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n(did you mean one of log?)'
+    )), 'hg log -r tip'),
+    (Command('hg rerere', stderr=(
+        "hg: unknown command 'rerere'"
+        '\n(did you mean one of revert?)'
+    )), 'hg revert'),
+    (Command('hg re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )), 'hg rebase'),
+    (Command('hg re re', stderr=(
+        "hg: command 're' is ambiguous:"
+        '\n    rebase recover remove rename resolve revert'
+    )), 'hg rebase re'),
+])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_mkdir_p.py

@@ -1,13 +1,22 @@
-from thefuck.main import Command
+import pytest
 from thefuck.rules.mkdir_p import match, get_new_command
+from tests.utils import Command
 
 
 def test_match():
-    assert match(Command('mkdir foo/bar/baz', '', 'mkdir: foo/bar: No such file or directory'), None)
-    assert not match(Command('mkdir foo/bar/baz', '', ''), None)
-    assert not match(Command('mkdir foo/bar/baz', '', 'foo bar baz'), None)
-    assert not match(Command('', '', ''), None)
+    assert match(Command('mkdir foo/bar/baz',
+                         stderr='mkdir: foo/bar: No such file or directory'),
+                 None)
+
+
+@pytest.mark.parametrize('command', [
+    Command('mkdir foo/bar/baz'),
+    Command('mkdir foo/bar/baz', stderr='foo bar baz'),
+    Command()])
+def test_not_match(command):
+    assert not match(command, None)
 
 
 def test_get_new_command():
-    assert get_new_command(Command('mkdir foo/bar/baz', '', ''), None) == 'mkdir -p foo/bar/baz'
+    assert get_new_command(Command('mkdir foo/bar/baz'), None)\
+           == 'mkdir -p foo/bar/baz'

tests/rules/test_no_command.py

@@ -1,19 +1,36 @@
 from mock import patch, Mock
-from thefuck.rules.no_command import match, get_new_command
+from thefuck.rules.no_command import match, get_new_command, _get_all_callables
 
 
-def test_match():
-    with patch('thefuck.rules.no_command._get_all_bins',
-               return_value=['vim', 'apt-get']):
-        assert match(Mock(stderr='vom: not found', script='vom file.py'), None)
-        assert not match(Mock(stderr='qweqwe: not found', script='qweqwe'), None)
-        assert not match(Mock(stderr='some text', script='vom file.py'), None)
+@patch('thefuck.rules.no_command._safe', return_value=[])
+@patch('thefuck.rules.no_command.get_aliases',
+       return_value=['vim', 'apt-get', 'fsck', 'fuck'])
+def test_get_all_callables(*args):
+    all_callables = _get_all_callables()
+    assert 'vim' in all_callables
+    assert 'fsck' in all_callables
+    assert 'fuck' not in all_callables
 
 
-def test_get_new_command():
-    with patch('thefuck.rules.no_command._get_all_bins',
-               return_value=['vim', 'apt-get']):
-        assert get_new_command(
-            Mock(stderr='vom: not found',
-                 script='vom file.py'),
-            None) == 'vim file.py'
+@patch('thefuck.rules.no_command._safe', return_value=[])
+@patch('thefuck.rules.no_command.get_aliases',
+       return_value=['vim', 'apt-get', 'fsck', 'fuck'])
+def test_match(*args):
+    assert match(Mock(stderr='vom: not found', script='vom file.py'), None)
+    assert match(Mock(stderr='fucck: not found', script='fucck'), None)
+    assert not match(Mock(stderr='qweqwe: not found', script='qweqwe'), None)
+    assert not match(Mock(stderr='some text', script='vom file.py'), None)
+
+
+@patch('thefuck.rules.no_command._safe', return_value=[])
+@patch('thefuck.rules.no_command.get_aliases',
+       return_value=['vim', 'apt-get', 'fsck', 'fuck'])
+def test_get_new_command(*args):
+    assert get_new_command(
+        Mock(stderr='vom: not found',
+             script='vom file.py'),
+        None) == 'vim file.py'
+    assert get_new_command(
+        Mock(stderr='fucck: not found',
+             script='fucck'),
+        None) == 'fsck'

tests/rules/test_no_such_file.py

@@ -0,0 +1,19 @@
+import pytest
+from thefuck.rules.no_such_file import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='mv foo bar/foo', stderr="mv: cannot move 'foo' to 'bar/foo': No such file or directory"),
+    Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"),
+    ])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(script='mv foo bar/foo', stderr="mv: cannot move 'foo' to 'bar/foo': No such file or directory"), 'mkdir -p bar && mv foo bar/foo'),
+    (Command(script='mv foo bar/', stderr="mv: cannot move 'foo' to 'bar/': No such file or directory"), 'mkdir -p bar && mv foo bar/'),
+    ])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_open.py

@@ -0,0 +1,25 @@
+import pytest
+from thefuck.rules.open import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='open foo.com'),
+    Command(script='open foo.ly'),
+    Command(script='open foo.org'),
+    Command(script='open foo.net'),
+    Command(script='open foo.se'),
+    Command(script='open foo.io')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('open foo.com'), 'open http://foo.com'),
+    (Command('open foo.ly'), 'open http://foo.ly'),
+    (Command('open foo.org'), 'open http://foo.org'),
+    (Command('open foo.net'), 'open http://foo.net'),
+    (Command('open foo.se'), 'open http://foo.se'),
+    (Command('open foo.io'), 'open http://foo.io')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_pacman.py

@@ -0,0 +1,69 @@
+import pytest
+from mock import patch
+from thefuck.rules import pacman
+from thefuck.rules.pacman import match, get_new_command
+from tests.utils import Command
+
+
+pacman_cmd = getattr(pacman, 'pacman', 'pacman')
+
+PKGFILE_OUTPUT_CONVERT = '''
+extra/imagemagick 6.9.1.0-1\t/usr/bin/convert
+'''
+
+PKGFILE_OUTPUT_VIM = '''
+extra/gvim 7.4.712-1        \t/usr/bin/vim
+extra/gvim-python3 7.4.712-1\t/usr/bin/vim
+extra/vim 7.4.712-1         \t/usr/bin/vim
+extra/vim-minimal 7.4.712-1 \t/usr/bin/vim
+extra/vim-python3 7.4.712-1 \t/usr/bin/vim
+'''
+
+
+@pytest.mark.skipif(not getattr(pacman, 'enabled_by_default', True),
+                    reason='Skip if pacman is not available')
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr='vim: command not found'),
+    Command(script='sudo vim', stderr='sudo: vim: command not found')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, return_value', [
+    (Command(script='vim', stderr='vim: command not found'), PKGFILE_OUTPUT_VIM),
+    (Command(script='sudo vim', stderr='sudo: vim: command not found'), PKGFILE_OUTPUT_VIM)])
+@patch('thefuck.rules.pacman.subprocess')
+@patch.multiple(pacman, create=True, pacman=pacman_cmd)
+def test_match_mocked(subp_mock, command, return_value):
+    subp_mock.check_output.return_value = return_value
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='vim', stderr=''), Command(),
+    Command(script='sudo vim', stderr=''), Command()])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+@pytest.mark.skipif(not getattr(pacman, 'enabled_by_default', True),
+                    reason='Skip if pacman is not available')
+@pytest.mark.parametrize('command, new_command', [
+    (Command('vim'), '{} -S extra/gvim && vim'.format(pacman_cmd)),
+    (Command('sudo vim'), '{} -S extra/gvim && sudo vim'.format(pacman_cmd)),
+    (Command('convert'), '{} -S extra/imagemagick && convert'.format(pacman_cmd)),
+    (Command('sudo convert'), '{} -S extra/imagemagick && sudo convert'.format(pacman_cmd))])
+def test_get_new_command(command, new_command, mocker):
+    assert get_new_command(command, None) == new_command
+
+
+@pytest.mark.parametrize('command, new_command, return_value', [
+    (Command('vim'), '{} -S extra/gvim && vim'.format(pacman_cmd), PKGFILE_OUTPUT_VIM),
+    (Command('sudo vim'), '{} -S extra/gvim && sudo vim'.format(pacman_cmd), PKGFILE_OUTPUT_VIM),
+    (Command('convert'), '{} -S extra/imagemagick && convert'.format(pacman_cmd), PKGFILE_OUTPUT_CONVERT),
+    (Command('sudo convert'), '{} -S extra/imagemagick && sudo convert'.format(pacman_cmd), PKGFILE_OUTPUT_CONVERT)])
+@patch('thefuck.rules.pacman.subprocess')
+@patch.multiple(pacman, create=True, pacman=pacman_cmd)
+def test_get_new_command_mocked(subp_mock, command, new_command, return_value):
+    subp_mock.check_output.return_value = return_value
+    assert get_new_command(command, None) == new_command

tests/rules/test_pip_unknown_command.py

@@ -0,0 +1,25 @@
+import pytest
+from thefuck.rules.pip_unknown_command import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def pip_unknown_cmd():
+    return '''ERROR: unknown command "instatl" - maybe you meant "install"'''
+
+
+@pytest.fixture
+def pip_unknown_cmd_without_recommend():
+    return '''ERROR: unknown command "i"'''
+
+
+def test_match(pip_unknown_cmd, pip_unknown_cmd_without_recommend):
+    assert match(Command('pip instatl', stderr=pip_unknown_cmd), None)
+    assert not match(Command('pip i',
+                             stderr=pip_unknown_cmd_without_recommend),
+                     None)
+
+
+def test_get_new_command(pip_unknown_cmd):
+    assert get_new_command(Command('pip instatl', stderr=pip_unknown_cmd),
+                           None) == 'pip install'

tests/rules/test_python_command.py

@@ -1,9 +1,12 @@
-from thefuck.main import Command
 from thefuck.rules.python_command import match, get_new_command
+from tests.utils import Command
+
 
 def test_match():
-    assert match(Command('temp.py', '', 'Permission denied'), None)
-    assert not match(Command('', '', ''), None)
+    assert match(Command('temp.py', stderr='Permission denied'), None)
+    assert not match(Command(), None)
+
 
 def test_get_new_command():
-    assert get_new_command(Command('./test_sudo.py', '', ''), None) == 'python ./test_sudo.py'
+    assert get_new_command(Command('./test_sudo.py'), None)\
+           == 'python ./test_sudo.py'

tests/rules/test_python_execute.py

@@ -0,0 +1,17 @@
+import pytest
+from thefuck.rules.python_execute import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='python foo'),
+    Command(script='python bar')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('python foo'), 'python foo.py'),
+    (Command('python bar'), 'python bar.py')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_quotation_marks.py

@@ -0,0 +1,19 @@
+import pytest
+from thefuck.rules.quotation_marks import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script="git commit -m \'My Message\""),
+    Command(script="git commit -am \"Mismatched Quotation Marks\'"),
+    Command(script="echo \"hello\'")])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command("git commit -m \'My Message\""), "git commit -m \"My Message\""),
+    (Command("git commit -am \"Mismatched Quotation Marks\'"), "git commit -am \"Mismatched Quotation Marks\""),
+    (Command("echo \"hello\'"), "echo \"hello\"")])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/rules/test_rm_dir.py

@@ -1,12 +1,20 @@
-from thefuck.main import Command
+import pytest
 from thefuck.rules.rm_dir import match, get_new_command
+from tests.utils import Command
 
 
-def test_match():
-    assert match(Command('rm foo', '', 'rm: foo: is a directory'), None)
-    assert not match(Command('rm foo', '', ''), None)
-    assert not match(Command('rm foo', '', 'foo bar baz'), None)
-    assert not match(Command('', '', ''), None)
+@pytest.mark.parametrize('command', [
+    Command('rm foo', stderr='rm: foo: is a directory'),
+    Command('rm foo', stderr='rm: foo: Is a directory')])
+def test_match(command):
+    assert match(command, None)
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command', [
+    Command('rm foo'), Command('rm foo'), Command()])
+def test_not_match(command):
+    assert not match(command, None)
 
 
 def test_get_new_command():

tests/rules/test_rm_root.py

@@ -0,0 +1,21 @@
+import pytest
+from thefuck.rules.rm_root import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    assert match(Command(script='rm -rf /',
+                         stderr='add --no-preserve-root'), None)
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='ls', stderr='add --no-preserve-root'),
+    Command(script='rm --no-preserve-root /', stderr='add --no-preserve-root'),
+    Command(script='rm -rf /', stderr='')])
+def test_not_match(command):
+    assert not match(command, None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command(script='rm -rf /'), None) \
+           == 'rm -rf / --no-preserve-root'

tests/rules/test_sed_unterminated_s.py

@@ -0,0 +1,28 @@
+import pytest
+from thefuck.rules.sed_unterminated_s import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def sed_unterminated_s():
+    return "sed: -e expression #1, char 9: unterminated `s' command"
+
+
+def test_match(sed_unterminated_s):
+    assert match(Command('sed -e s/foo/bar', stderr=sed_unterminated_s), None)
+    assert match(Command('sed -es/foo/bar', stderr=sed_unterminated_s), None)
+    assert match(Command('sed -e s/foo/bar -e s/baz/quz', stderr=sed_unterminated_s), None)
+    assert not match(Command('sed -e s/foo/bar'), None)
+    assert not match(Command('sed -es/foo/bar'), None)
+    assert not match(Command('sed -e s/foo/bar -e s/baz/quz'), None)
+
+
+def test_get_new_command(sed_unterminated_s):
+    assert get_new_command(Command('sed -e s/foo/bar', stderr=sed_unterminated_s), None) \
+            == 'sed -e s/foo/bar/'
+    assert get_new_command(Command('sed -es/foo/bar', stderr=sed_unterminated_s), None) \
+            == 'sed -es/foo/bar/'
+    assert get_new_command(Command(r"sed -e 's/\/foo/bar'", stderr=sed_unterminated_s), None) \
+            == r"sed -e 's/\/foo/bar/'"
+    assert get_new_command(Command(r"sed -e s/foo/bar -es/baz/quz", stderr=sed_unterminated_s), None) \
+            == r"sed -e s/foo/bar/ -es/baz/quz/"

tests/rules/test_sl_ls.py

@@ -0,0 +1,12 @@
+
+from thefuck.rules.sl_ls import match, get_new_command
+from tests.utils import Command
+
+
+def test_match():
+    assert match(Command('sl'), None)
+    assert not match(Command('ls'), None)
+
+
+def test_get_new_command():
+    assert get_new_command(Command('sl'), None) == 'ls'

tests/rules/test_ssh_known_host.py

@@ -1,8 +1,9 @@
 import os
 import pytest
 from mock import Mock
-from thefuck.main import Command
-from thefuck.rules.ssh_known_hosts import match, get_new_command, remove_offending_keys
+from thefuck.rules.ssh_known_hosts import match, get_new_command,\
+    side_effect
+from tests.utils import Command
 
 
 @pytest.fixture
@@ -43,27 +44,23 @@ Host key verification failed.""".format(path, '98.765.432.321')
 
 def test_match(ssh_error):
     errormsg, _, _, _ = ssh_error
-    assert match(Command('ssh', '', errormsg), None)
-    assert match(Command('ssh', '', errormsg), None)
-    assert match(Command('scp something something', '', errormsg), None)
-    assert match(Command('scp something something', '', errormsg), None)
-    assert not match(Command('', '', errormsg), None)
-    assert not match(Command('notssh', '', errormsg), None)
-    assert not match(Command('ssh', '', ''), None)
+    assert match(Command('ssh', stderr=errormsg), None)
+    assert match(Command('ssh', stderr=errormsg), None)
+    assert match(Command('scp something something', stderr=errormsg), None)
+    assert match(Command('scp something something', stderr=errormsg), None)
+    assert not match(Command(stderr=errormsg), None)
+    assert not match(Command('notssh', stderr=errormsg), None)
+    assert not match(Command('ssh'), None)
 
 
-def test_remove_offending_keys(ssh_error):
+def test_side_effect(ssh_error):
     errormsg, path, reset, known_hosts = ssh_error
-    command = Command('ssh user@host', '', errormsg)
-    remove_offending_keys(command, None)
+    command = Command('ssh user@host', stderr=errormsg)
+    side_effect(command, None)
     expected = ['123.234.567.890 asdjkasjdakjsd\n', '111.222.333.444 qwepoiwqepoiss\n']
     assert known_hosts(path) == expected
 
 
 def test_get_new_command(ssh_error, monkeypatch):
     errormsg, _, _, _ = ssh_error
-
-    method = Mock()
-    monkeypatch.setattr('thefuck.rules.ssh_known_hosts.remove_offending_keys', method)
-    assert get_new_command(Command('ssh user@host', '', errormsg), None) == 'ssh user@host'
-    assert method.call_count
+    assert get_new_command(Command('ssh user@host', stderr=errormsg), None) == 'ssh user@host'

tests/rules/test_sudo.py

@@ -1,13 +1,24 @@
-from thefuck.main import Command
+import pytest
 from thefuck.rules.sudo import match, get_new_command
+from tests.utils import Command
 
 
-def test_match():
-    assert match(Command('', '', 'Permission denied'), None)
-    assert match(Command('', '', 'permission denied'), None)
-    assert match(Command('', '', "npm ERR! Error: EACCES, unlink"), None)
-    assert not match(Command('', '', ''), None)
+@pytest.mark.parametrize('stderr, stdout', [
+    ('Permission denied', ''),
+    ('permission denied', ''),
+    ("npm ERR! Error: EACCES, unlink", ''),
+    ('requested operation requires superuser privilege', ''),
+    ('need to be root', ''),
+    ('need root', ''),
+    ('must be root', ''),
+    ('', "error: [Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/ipaddr.py'")])
+def test_match(stderr, stdout):
+    assert match(Command(stderr=stderr, stdout=stdout), None)
+
+
+def test_not_match():
+    assert not match(Command(), None)
 
 
 def test_get_new_command():
-    assert get_new_command(Command('ls', '', ''), None) == 'sudo ls'
+    assert get_new_command(Command('ls'), None) == 'sudo ls'

tests/rules/test_switch_lang.py

@@ -1,25 +1,27 @@
 # -*- encoding: utf-8 -*-
 
-from mock import Mock
+import pytest
 from thefuck.rules import switch_lang
+from tests.utils import Command
 
 
-def test_match():
-    assert switch_lang.match(Mock(stderr='command not found: фзе-пуе',
-                                  script=u'фзе-пуе'), None)
-    assert switch_lang.match(Mock(stderr='command not found: λσ',
-                                  script=u'λσ'), None)
-
-    assert not switch_lang.match(Mock(stderr='command not found: pat-get',
-                                      script=u'pat-get'), None)
-    assert not switch_lang.match(Mock(stderr='command not found: ls',
-                                      script=u'ls'), None)
-    assert not switch_lang.match(Mock(stderr='some info',
-                                      script=u'фзе-пуе'), None)
+@pytest.mark.parametrize('command', [
+    Command(stderr='command not found: фзе-пуе', script=u'фзе-пуе'),
+    Command(stderr='command not found: λσ', script=u'λσ')])
+def test_match(command):
+    assert switch_lang.match(command, None)
 
 
-def test_get_new_command():
-    assert switch_lang.get_new_command(
-        Mock(script=u'фзе-пуе штыефдд мшь'), None) == 'apt-get install vim'
-    assert switch_lang.get_new_command(
-        Mock(script=u'λσ -λα'), None) == 'ls -la'
+@pytest.mark.parametrize('command', [
+    Command(stderr='command not found: pat-get', script=u'pat-get'),
+    Command(stderr='command not found: ls', script=u'ls'),
+    Command(stderr='some info', script=u'фзе-пуе')])
+def test_not_match(command):
+    assert not switch_lang.match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command(u'фзе-пуе штыефдд мшь'), 'apt-get install vim'),
+    (Command(u'λσ -λα'), 'ls -la')])
+def test_get_new_command(command, new_command):
+    assert switch_lang.get_new_command(command, None) == new_command

tests/rules/test_systemctl.py

@@ -0,0 +1,18 @@
+import pytest
+from thefuck.rules.systemctl import match, get_new_command
+from tests.utils import Command
+
+
+
+def test_match():
+    assert match(Command('systemctl nginx start', stderr='Unknown operation \'nginx\'.'), None)
+    assert match(Command('sudo systemctl nginx start', stderr='Unknown operation \'nginx\'.'), None)
+    assert not match(Command('systemctl start nginx'), None)
+    assert not match(Command('systemctl start nginx'), None)
+    assert not match(Command('sudo systemctl nginx', stderr='Unknown operation \'nginx\'.'), None)
+    assert not match(Command('systemctl nginx', stderr='Unknown operation \'nginx\'.'), None)
+    assert not match(Command('systemctl start wtf', stderr='Failed to start wtf.service: Unit wtf.service failed to load: No such file or directory.'), None)
+
+def test_get_new_command():
+    assert get_new_command(Command('systemctl nginx start'), None) == "systemctl start nginx"
+    assert get_new_command(Command('sudo systemctl nginx start'), None) == "sudo systemctl start nginx"

tests/rules/test_tmux.py

@@ -0,0 +1,19 @@
+import pytest
+from thefuck.rules.tmux import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.fixture
+def tmux_ambiguous():
+    return "ambiguous command: list, could be: " \
+           "list-buffers, list-clients, list-commands, list-keys, " \
+           "list-panes, list-sessions, list-windows"
+
+
+def test_match(tmux_ambiguous):
+    assert match(Command('tmux list', stderr=tmux_ambiguous), None)
+
+
+def test_get_new_command(tmux_ambiguous):
+    assert get_new_command(Command('tmux list', stderr=tmux_ambiguous), None)\
+        == 'tmux list-buffers'

tests/rules/test_whois.py

@@ -0,0 +1,23 @@
+import pytest
+from thefuck.rules.whois import match, get_new_command
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('command', [
+    Command(script='whois https://en.wikipedia.org/wiki/Main_Page'),
+    Command(script='whois https://en.wikipedia.org/'),
+    Command(script='whois en.wikipedia.org')])
+def test_match(command):
+    assert match(command, None)
+
+
+def test_not_match():
+    assert not match(Command(script='whois'), None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('whois https://en.wikipedia.org/wiki/Main_Page'), 'whois en.wikipedia.org'),
+    (Command('whois https://en.wikipedia.org/'), 'whois en.wikipedia.org'),
+    (Command('whois en.wikipedia.org'), 'whois wikipedia.org')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command

tests/test_conf.py

@@ -0,0 +1,102 @@
+import pytest
+import six
+from mock import Mock
+from thefuck import conf
+from tests.utils import Rule
+
+
+@pytest.mark.parametrize('enabled, rules, result', [
+    (True, conf.DEFAULT_RULES, True),
+    (False, conf.DEFAULT_RULES, False),
+    (False, conf.DEFAULT_RULES + ['test'], True)])
+def test_default(enabled, rules, result):
+    assert (Rule('test', enabled_by_default=enabled) in rules) == result
+
+
+@pytest.fixture
+def load_source(mocker):
+    return mocker.patch('thefuck.conf.load_source')
+
+
+@pytest.fixture
+def environ(monkeypatch):
+    data = {}
+    monkeypatch.setattr('thefuck.conf.os.environ', data)
+    return data
+
+
+@pytest.mark.usefixture('environ')
+def test_settings_defaults(load_source):
+    load_source.return_value = object()
+    for key, val in conf.DEFAULT_SETTINGS.items():
+        assert getattr(conf.get_settings(Mock()), key) == val
+
+
+@pytest.mark.usefixture('environ')
+class TestSettingsFromFile(object):
+    def test_from_file(self, load_source):
+        load_source.return_value = Mock(rules=['test'],
+                                        wait_command=10,
+                                        require_confirmation=True,
+                                        no_colors=True,
+                                        priority={'vim': 100})
+        settings = conf.get_settings(Mock())
+        assert settings.rules == ['test']
+        assert settings.wait_command == 10
+        assert settings.require_confirmation is True
+        assert settings.no_colors is True
+        assert settings.priority == {'vim': 100}
+
+    def test_from_file_with_DEFAULT(self, load_source):
+        load_source.return_value = Mock(rules=conf.DEFAULT_RULES + ['test'],
+                                        wait_command=10,
+                                        require_confirmation=True,
+                                        no_colors=True)
+        settings = conf.get_settings(Mock())
+        assert settings.rules == conf.DEFAULT_RULES + ['test']
+
+
+@pytest.mark.usefixture('load_source')
+class TestSettingsFromEnv(object):
+    def test_from_env(self, environ):
+        environ.update({'THEFUCK_RULES': 'bash:lisp',
+                        'THEFUCK_WAIT_COMMAND': '55',
+                        'THEFUCK_REQUIRE_CONFIRMATION': 'true',
+                        'THEFUCK_NO_COLORS': 'false',
+                        'THEFUCK_PRIORITY': 'bash=10:lisp=wrong:vim=15'})
+        settings = conf.get_settings(Mock())
+        assert settings.rules == ['bash', 'lisp']
+        assert settings.wait_command == 55
+        assert settings.require_confirmation is True
+        assert settings.no_colors is False
+        assert settings.priority == {'bash': 10, 'vim': 15}
+
+    def test_from_env_with_DEFAULT(self, environ):
+        environ.update({'THEFUCK_RULES': 'DEFAULT_RULES:bash:lisp'})
+        settings = conf.get_settings(Mock())
+        assert settings.rules == conf.DEFAULT_RULES + ['bash', 'lisp']
+
+
+class TestInitializeSettingsFile(object):
+    def test_ignore_if_exists(self):
+        settings_path_mock = Mock(is_file=Mock(return_value=True), open=Mock())
+        user_dir_mock = Mock(joinpath=Mock(return_value=settings_path_mock))
+        conf.initialize_settings_file(user_dir_mock)
+        assert settings_path_mock.is_file.call_count == 1
+        assert not settings_path_mock.open.called
+
+    def test_create_if_doesnt_exists(self):
+        settings_file = six.StringIO()
+        settings_path_mock = Mock(
+            is_file=Mock(return_value=False),
+            open=Mock(return_value=Mock(
+                __exit__=lambda *args: None, __enter__=lambda *args: settings_file)))
+        user_dir_mock = Mock(joinpath=Mock(return_value=settings_path_mock))
+        conf.initialize_settings_file(user_dir_mock)
+        settings_file_contents = settings_file.getvalue()
+        assert settings_path_mock.is_file.call_count == 1
+        assert settings_path_mock.open.call_count == 1
+        assert conf.SETTINGS_HEADER in settings_file_contents
+        for setting in conf.DEFAULT_SETTINGS.items():
+            assert '# {} = {}\n'.format(*setting) in settings_file_contents
+        settings_file.close()

tests/test_logs.py

@@ -0,0 +1,7 @@
+from mock import Mock
+from thefuck import logs
+
+
+def test_color():
+    assert logs.color('red', Mock(no_colors=False)) == 'red'
+    assert logs.color('red', Mock(no_colors=True)) == ''

tests/test_main.py

@@ -1,101 +1,173 @@
+import pytest
 from subprocess import PIPE
 from pathlib import PosixPath, Path
-from mock import patch, Mock
-from thefuck import main
+from mock import Mock
+from thefuck import main, conf, types
+from tests.utils import Rule, Command
 
 
-def test_get_settings():
-    with patch('thefuck.main.load_source', return_value=Mock(rules=['bash'])):
-        assert main.get_settings(Path('/')).rules == ['bash']
-    with patch('thefuck.main.load_source', return_value=Mock(spec=[])):
-        assert main.get_settings(Path('/')).rules is None
-
-
-def test_is_rule_enabled():
-    assert main.is_rule_enabled(Mock(rules=None), Path('bash.py'))
-    assert main.is_rule_enabled(Mock(rules=['bash']), Path('bash.py'))
-    assert not main.is_rule_enabled(Mock(rules=['bash']), Path('lisp.py'))
-
-
-def test_load_rule():
+def test_load_rule(mocker):
     match = object()
     get_new_command = object()
-    with patch('thefuck.main.load_source',
-               return_value=Mock(
-                   match=match,
-                   get_new_command=get_new_command)) as load_source:
-        assert main.load_rule(Path('/rules/bash.py')) == main.Rule('bash', match, get_new_command)
-        load_source.assert_called_once_with('bash', '/rules/bash.py')
+    load_source = mocker.patch(
+        'thefuck.main.load_source',
+        return_value=Mock(match=match,
+                          get_new_command=get_new_command,
+                          enabled_by_default=True,
+                          priority=900))
+    assert main.load_rule(Path('/rules/bash.py')) \
+           == Rule('bash', match, get_new_command, priority=900)
+    load_source.assert_called_once_with('bash', '/rules/bash.py')
 
 
-def test_get_rules():
-    with patch('thefuck.main.Path.glob') as glob, \
-            patch('thefuck.main.load_source',
-                  lambda x, _: Mock(match=x, get_new_command=x)):
+class TestGetRules(object):
+    @pytest.fixture(autouse=True)
+    def glob(self, mocker):
+        return mocker.patch('thefuck.main.Path.glob', return_value=[])
+
+    def _compare_names(self, rules, names):
+        return [r.name for r in rules] == names
+
+    @pytest.mark.parametrize('conf_rules, rules', [
+        (conf.DEFAULT_RULES, ['bash', 'lisp', 'bash', 'lisp']),
+        (types.RulesNamesList(['bash']), ['bash', 'bash'])])
+    def test_get(self, monkeypatch, glob, conf_rules, rules):
         glob.return_value = [PosixPath('bash.py'), PosixPath('lisp.py')]
-        assert main.get_rules(
-            Path('~'),
-            Mock(rules=None)) == [main.Rule('bash', 'bash', 'bash'),
-                                  main.Rule('lisp', 'lisp', 'lisp'),
-                                  main.Rule('bash', 'bash', 'bash'),
-                                  main.Rule('lisp', 'lisp', 'lisp')]
-        assert main.get_rules(
-            Path('~'),
-            Mock(rules=['bash'])) == [main.Rule('bash', 'bash', 'bash'),
-                                      main.Rule('bash', 'bash', 'bash')]
+        monkeypatch.setattr('thefuck.main.load_source',
+                            lambda x, _: Rule(x))
+        assert self._compare_names(
+            main.get_rules(Path('~'), Mock(rules=conf_rules, priority={})),
+            rules)
+
+    @pytest.mark.parametrize('priority, unordered, ordered', [
+        ({},
+         [Rule('bash', priority=100), Rule('python', priority=5)],
+         ['python', 'bash']),
+        ({},
+         [Rule('lisp', priority=9999), Rule('c', priority=conf.DEFAULT_PRIORITY)],
+         ['c', 'lisp']),
+        ({'python': 9999},
+         [Rule('bash', priority=100), Rule('python', priority=5)],
+         ['bash', 'python'])])
+    def test_ordered_by_priority(self, monkeypatch, priority, unordered, ordered):
+        monkeypatch.setattr('thefuck.main._get_loaded_rules',
+                            lambda *_: unordered)
+        assert self._compare_names(
+            main.get_rules(Path('~'), Mock(priority=priority)),
+            ordered)
 
 
-def test_get_command():
-    with patch('thefuck.main.Popen') as Popen, \
-            patch('thefuck.main.os.environ',
-                  new_callable=lambda: {}), \
-            patch('thefuck.main.wait_output',
-                  return_value=True):
+class TestGetCommand(object):
+    @pytest.fixture(autouse=True)
+    def Popen(self, monkeypatch):
+        Popen = Mock()
         Popen.return_value.stdout.read.return_value = b'stdout'
         Popen.return_value.stderr.read.return_value = b'stderr'
-        assert main.get_command(Mock(), ['thefuck', 'apt-get',
-                                         'search', 'vim']) \
-               == main.Command('apt-get search vim', 'stdout', 'stderr')
+        monkeypatch.setattr('thefuck.main.Popen', Popen)
+        return Popen
+
+    @pytest.fixture(autouse=True)
+    def prepare(self, monkeypatch):
+        monkeypatch.setattr('thefuck.main.os.environ', {})
+        monkeypatch.setattr('thefuck.main.wait_output', lambda *_: True)
+
+    @pytest.fixture(autouse=True)
+    def generic_shell(self, monkeypatch):
+        monkeypatch.setattr('thefuck.shells.from_shell', lambda x: x)
+        monkeypatch.setattr('thefuck.shells.to_shell', lambda x: x)
+
+    def test_get_command_calls(self, Popen):
+        assert main.get_command(Mock(),
+            ['thefuck', 'apt-get', 'search', 'vim']) \
+               == Command('apt-get search vim', 'stdout', 'stderr')
         Popen.assert_called_once_with('apt-get search vim',
                                       shell=True,
                                       stdout=PIPE,
                                       stderr=PIPE,
                                       env={'LANG': 'C'})
-        assert main.get_command(Mock(), ['']) is None
+
+    @pytest.mark.parametrize('args, result', [
+        (['thefuck', 'ls', '-la'], 'ls -la'),
+        (['thefuck', 'ls'], 'ls')])
+    def test_get_command_script(self, args, result):
+        if result:
+            assert main.get_command(Mock(), args).script == result
+        else:
+            assert main.get_command(Mock(), args) is None
 
 
-def test_get_matched_rule(capsys):
-    rules = [main.Rule('', lambda x, _: x.script == 'cd ..', None),
-             main.Rule('', lambda *_: False, None),
-             main.Rule('rule', Mock(side_effect=OSError('Denied')), None)]
-    assert main.get_matched_rule(main.Command('ls', '', ''),
-                                 rules, None) is None
-    assert main.get_matched_rule(main.Command('cd ..', '', ''),
-                                 rules, None) == rules[0]
-    assert capsys.readouterr()[1].split('\n')[0]\
-           == '[WARN] rule: Traceback (most recent call last):'
+class TestGetMatchedRule(object):
+    def test_no_match(self):
+        assert main.get_matched_rule(
+            Command('ls'), [Rule('', lambda *_: False)],
+            Mock(no_colors=True)) is None
+
+    def test_match(self):
+        rule = Rule('', lambda x, _: x.script == 'cd ..')
+        assert main.get_matched_rule(
+            Command('cd ..'), [rule], Mock(no_colors=True)) == rule
+
+    def test_when_rule_failed(self, capsys):
+        main.get_matched_rule(
+            Command('ls'), [Rule('test', Mock(side_effect=OSError('Denied')))],
+            Mock(no_colors=True))
+        assert capsys.readouterr()[1].split('\n')[0] == '[WARN] Rule test:'
 
 
-def test_run_rule(capsys):
-    with patch('thefuck.main.confirm', return_value=True):
-        main.run_rule(main.Rule('', None, lambda *_: 'new-command'),
-                      None, None)
+class TestRunRule(object):
+    @pytest.fixture(autouse=True)
+    def confirm(self, mocker):
+        return mocker.patch('thefuck.main.confirm', return_value=True)
+
+    def test_run_rule(self, capsys):
+        main.run_rule(Rule(get_new_command=lambda *_: 'new-command'),
+                      Command(), None)
         assert capsys.readouterr() == ('new-command\n', '')
-    with patch('thefuck.main.confirm', return_value=False):
-        main.run_rule(main.Rule('', None, lambda *_: 'new-command'),
-                      None, None)
+
+    def test_run_rule_with_side_effect(self, capsys):
+        side_effect = Mock()
+        settings = Mock()
+        command = Command()
+        main.run_rule(Rule(get_new_command=lambda *_: 'new-command',
+                           side_effect=side_effect),
+                      command, settings)
+        assert capsys.readouterr() == ('new-command\n', '')
+        side_effect.assert_called_once_with(command, settings)
+
+    def test_when_not_comfirmed(self, capsys, confirm):
+        confirm.return_value = False
+        main.run_rule(Rule(get_new_command=lambda *_: 'new-command'),
+                      Command(), None)
         assert capsys.readouterr() == ('', '')
 
 
-def test_confirm(capsys):
-    # When confirmation not required:
-    assert main.confirm('command', Mock(require_confirmation=False))
-    assert capsys.readouterr() == ('', 'command\n')
-    # When confirmation required and confirmed:
-    with patch('thefuck.main.sys.stdin.read', return_value='\n'):
-        assert main.confirm('command', Mock(require_confirmation=True))
-        assert capsys.readouterr() == ('', 'command [Enter/Ctrl+C]')
-    # When confirmation required and ctrl+c:
-    with patch('thefuck.main.sys.stdin.read', side_effect=KeyboardInterrupt):
-        assert not main.confirm('command', Mock(require_confirmation=True))
-        assert capsys.readouterr() == ('', 'command [Enter/Ctrl+C]Aborted\n')
+class TestConfirm(object):
+    @pytest.fixture
+    def stdin(self, mocker):
+        return mocker.patch('sys.stdin.read', return_value='\n')
+
+    def test_when_not_required(self, capsys):
+        assert main.confirm('command', None, Mock(require_confirmation=False))
+        assert capsys.readouterr() == ('', 'command\n')
+
+    def test_with_side_effect_and_without_confirmation(self, capsys):
+        assert main.confirm('command', Mock(), Mock(require_confirmation=False))
+        assert capsys.readouterr() == ('', 'command*\n')
+
+    # `stdin` fixture should be applied after `capsys`
+    def test_when_confirmation_required_and_confirmed(self, capsys, stdin):
+        assert main.confirm('command', None, Mock(require_confirmation=True,
+                                                  no_colors=True))
+        assert capsys.readouterr() == ('', 'command [enter/ctrl+c]')
+
+    # `stdin` fixture should be applied after `capsys`
+    def test_when_confirmation_required_and_confirmed_with_side_effect(self, capsys, stdin):
+        assert main.confirm('command', Mock(), Mock(require_confirmation=True,
+                                                    no_colors=True))
+        assert capsys.readouterr() == ('', 'command* [enter/ctrl+c]')
+
+    def test_when_confirmation_required_and_aborted(self, capsys, stdin):
+        stdin.side_effect = KeyboardInterrupt
+        assert not main.confirm('command', None, Mock(require_confirmation=True,
+                                                      no_colors=True))
+        assert capsys.readouterr() == ('', 'command [enter/ctrl+c]Aborted\n')

tests/test_shells.py

@@ -0,0 +1,189 @@
+import pytest
+from thefuck import shells
+
+
+@pytest.fixture
+def builtins_open(mocker):
+    return mocker.patch('six.moves.builtins.open')
+
+
+@pytest.fixture
+def isfile(mocker):
+    return mocker.patch('os.path.isfile', return_value=True)
+
+
+class TestGeneric(object):
+    @pytest.fixture
+    def shell(self):
+        return shells.Generic()
+
+    def test_from_shell(self, shell):
+        assert shell.from_shell('pwd') == 'pwd'
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_put_to_history(self, builtins_open, shell):
+        assert shell.put_to_history('ls') is None
+        assert builtins_open.call_count == 0
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias()
+        assert 'thefuck' in shell.app_alias()
+        assert 'TF_ALIAS' in shell.app_alias()
+
+
+@pytest.mark.usefixtures('isfile')
+class TestBash(object):
+    @pytest.fixture
+    def shell(self):
+        return shells.Bash()
+
+    @pytest.fixture(autouse=True)
+    def Popen(self, mocker):
+        mock = mocker.patch('thefuck.shells.Popen')
+        mock.return_value.stdout.read.return_value = (
+            b'alias fuck=\'eval $(thefuck $(fc -ln -1))\'\n'
+            b'alias l=\'ls -CF\'\n'
+            b'alias la=\'ls -A\'\n'
+            b'alias ll=\'ls -alF\'')
+        return mock
+
+    @pytest.mark.parametrize('before, after', [
+        ('pwd', 'pwd'),
+        ('fuck', 'eval $(thefuck $(fc -ln -1))'),
+        ('awk', 'awk'),
+        ('ll', 'ls -alF')])
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_put_to_history(self, builtins_open, shell):
+        shell.put_to_history('ls')
+        builtins_open.return_value.__enter__.return_value. \
+            write.assert_called_once_with('ls\n')
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'fuck': 'eval $(thefuck $(fc -ln -1))',
+                                       'l': 'ls -CF',
+                                       'la': 'ls -A',
+                                       'll': 'ls -alF'}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias()
+        assert 'thefuck' in shell.app_alias()
+        assert 'TF_ALIAS' in shell.app_alias()
+
+
+@pytest.mark.usefixtures('isfile')
+class TestFish(object):
+    @pytest.fixture
+    def shell(self):
+        return shells.Fish()
+
+    @pytest.fixture(autouse=True)
+    def Popen(self, mocker):
+        mock = mocker.patch('thefuck.shells.Popen')
+        mock.return_value.stdout.read.return_value = (
+            b'fish_config\nfuck\nfunced\nfuncsave\ngrep\nhistory\nll\nmath')
+        return mock
+
+    @pytest.mark.parametrize('before, after', [
+        ('pwd', 'pwd'),
+        ('fuck', 'fish -ic "fuck"'),
+        ('find', 'find'),
+        ('funced', 'fish -ic "funced"'),
+        ('awk', 'awk'),
+        ('math "2 + 2"', r'fish -ic "math \"2 + 2\""'),
+        ('vim', 'vim'),
+        ('ll', 'fish -ic "ll"')])  # Fish has no aliases but functions
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_put_to_history(self, builtins_open, mocker, shell):
+        mocker.patch('thefuck.shells.time',
+                     return_value=1430707243.3517463)
+        shell.put_to_history('ls')
+        builtins_open.return_value.__enter__.return_value. \
+            write.assert_called_once_with('- cmd: ls\n   when: 1430707243\n')
+
+    def test_and_(self, shell):
+        assert shell.and_('foo', 'bar') == 'foo; and bar'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {'fish_config': 'fish_config',
+                                       'fuck': 'fuck',
+                                       'funced': 'funced',
+                                       'funcsave': 'funcsave',
+                                       'grep': 'grep',
+                                       'history': 'history',
+                                       'll': 'll',
+                                       'math': 'math'}
+
+    def test_app_alias(self, shell):
+        assert 'function fuck' in shell.app_alias()
+        assert 'thefuck' in shell.app_alias()
+        assert 'TF_ALIAS' in shell.app_alias()
+
+
+@pytest.mark.usefixtures('isfile')
+class TestZsh(object):
+    @pytest.fixture
+    def shell(self):
+        return shells.Zsh()
+
+    @pytest.fixture(autouse=True)
+    def Popen(self, mocker):
+        mock = mocker.patch('thefuck.shells.Popen')
+        mock.return_value.stdout.read.return_value = (
+            b'fuck=\'eval $(thefuck $(fc -ln -1 | tail -n 1))\'\n'
+            b'l=\'ls -CF\'\n'
+            b'la=\'ls -A\'\n'
+            b'll=\'ls -alF\'')
+        return mock
+
+    @pytest.mark.parametrize('before, after', [
+        ('fuck', 'eval $(thefuck $(fc -ln -1 | tail -n 1))'),
+        ('pwd', 'pwd'),
+        ('ll', 'ls -alF')])
+    def test_from_shell(self, before, after, shell):
+        assert shell.from_shell(before) == after
+
+    def test_to_shell(self, shell):
+        assert shell.to_shell('pwd') == 'pwd'
+
+    def test_put_to_history(self, builtins_open, mocker, shell):
+        mocker.patch('thefuck.shells.time',
+                     return_value=1430707243.3517463)
+        shell.put_to_history('ls')
+        builtins_open.return_value.__enter__.return_value. \
+            write.assert_called_once_with(': 1430707243:0;ls\n')
+
+    def test_and_(self, shell):
+        assert shell.and_('ls', 'cd') == 'ls && cd'
+
+    def test_get_aliases(self, shell):
+        assert shell.get_aliases() == {
+            'fuck': 'eval $(thefuck $(fc -ln -1 | tail -n 1))',
+            'l': 'ls -CF',
+            'la': 'ls -A',
+            'll': 'ls -alF'}
+
+    def test_app_alias(self, shell):
+        assert 'alias fuck' in shell.app_alias()
+        assert 'thefuck' in shell.app_alias()
+        assert 'TF_ALIAS' in shell.app_alias()

tests/test_types.py

@@ -0,0 +1,16 @@
+from thefuck.types import RulesNamesList, Settings
+from tests.utils import Rule
+
+
+def test_rules_names_list():
+    assert RulesNamesList(['bash', 'lisp']) == ['bash', 'lisp']
+    assert RulesNamesList(['bash', 'lisp']) == RulesNamesList(['bash', 'lisp'])
+    assert Rule('lisp') in RulesNamesList(['lisp'])
+    assert Rule('bash') not in RulesNamesList(['lisp'])
+
+
+def test_update_settings():
+    settings = Settings({'key': 'val'})
+    new_settings = settings.update(key='new-val')
+    assert new_settings.key == 'new-val'
+    assert settings.key == 'val'

tests/test_utils.py

@@ -0,0 +1,34 @@
+import pytest
+from mock import Mock
+from thefuck.utils import sudo_support, wrap_settings, memoize
+from thefuck.types import Settings
+from tests.utils import Command
+
+
+@pytest.mark.parametrize('override, old, new', [
+    ({'key': 'val'}, {}, {'key': 'val'}),
+    ({'key': 'new-val'}, {'key': 'val'}, {'key': 'new-val'})])
+def test_wrap_settings(override, old, new):
+    fn = lambda _, settings: settings
+    assert wrap_settings(override)(fn)(None, Settings(old)) == new
+
+
+@pytest.mark.parametrize('return_value, command, called, result', [
+    ('ls -lah', 'sudo ls', 'ls', 'sudo ls -lah'),
+    ('ls -lah', 'ls', 'ls', 'ls -lah'),
+    (True, 'sudo ls', 'ls', True),
+    (True, 'ls', 'ls', True),
+    (False, 'sudo ls', 'ls', False),
+    (False, 'ls', 'ls', False)])
+def test_sudo_support(return_value, command, called, result):
+    fn = Mock(return_value=return_value, __name__='')
+    assert sudo_support(fn)(Command(command), None) == result
+    fn.assert_called_once_with(Command(called), None)
+
+
+def test_memoize():
+    fn = Mock(__name__='fn')
+    memoized = memoize(fn)
+    memoized()
+    memoized()
+    fn.assert_called_once_with()

tests/utils.py

@@ -0,0 +1,16 @@
+from thefuck import types
+from thefuck.conf import DEFAULT_PRIORITY
+
+
+def Command(script='', stdout='', stderr=''):
+    return types.Command(script, stdout, stderr)
+
+
+def Rule(name='', match=lambda *_: True,
+         get_new_command=lambda *_: '',
+         enabled_by_default=True,
+         side_effect=None,
+         priority=DEFAULT_PRIORITY):
+    return types.Rule(name, match, get_new_command,
+                      enabled_by_default, side_effect,
+                      priority)

thefuck/conf.py

@@ -0,0 +1,132 @@
+from copy import copy
+from imp import load_source
+import os
+import sys
+from six import text_type
+from . import logs, types
+
+
+class _DefaultRulesNames(types.RulesNamesList):
+    def __add__(self, items):
+        return _DefaultRulesNames(list(self) + items)
+
+    def __contains__(self, item):
+        return item.enabled_by_default or \
+               super(_DefaultRulesNames, self).__contains__(item)
+
+    def __eq__(self, other):
+        if isinstance(other, _DefaultRulesNames):
+            return super(_DefaultRulesNames, self).__eq__(other)
+        else:
+            return False
+
+
+DEFAULT_RULES = _DefaultRulesNames([])
+DEFAULT_PRIORITY = 1000
+
+
+DEFAULT_SETTINGS = {'rules': DEFAULT_RULES,
+                    'wait_command': 3,
+                    'require_confirmation': False,
+                    'no_colors': False,
+                    'priority': {}}
+
+ENV_TO_ATTR = {'THEFUCK_RULES': 'rules',
+               'THEFUCK_WAIT_COMMAND': 'wait_command',
+               'THEFUCK_REQUIRE_CONFIRMATION': 'require_confirmation',
+               'THEFUCK_NO_COLORS': 'no_colors',
+               'THEFUCK_PRIORITY': 'priority'}
+
+
+SETTINGS_HEADER = u"""# ~/.thefuck/settings.py: The Fuck settings file
+#
+# The rules are defined as in the example bellow:
+#
+# rules = ['cd_parent', 'git_push', 'python_command', 'sudo']
+#
+# The default values are as follows. Uncomment and change to fit your needs.
+# See https://github.com/nvbn/thefuck#settings for more information.
+#
+
+"""
+
+
+def _settings_from_file(user_dir):
+    """Loads settings from file."""
+    settings = load_source('settings',
+                           text_type(user_dir.joinpath('settings.py')))
+    return {key: getattr(settings, key)
+            for key in DEFAULT_SETTINGS.keys()
+            if hasattr(settings, key)}
+
+
+def _rules_from_env(val):
+    """Transforms rules list from env-string to python."""
+    val = val.split(':')
+    if 'DEFAULT_RULES' in val:
+        val = DEFAULT_RULES + [rule for rule in val if rule != 'DEFAULT_RULES']
+    return val
+
+
+def _priority_from_env(val):
+    """Gets priority pairs from env."""
+    for part in val.split(':'):
+        try:
+            rule, priority = part.split('=')
+            yield rule, int(priority)
+        except ValueError:
+            continue
+
+
+def _val_from_env(env, attr):
+    """Transforms env-strings to python."""
+    val = os.environ[env]
+    if attr == 'rules':
+        return _rules_from_env(val)
+    elif attr == 'priority':
+        return dict(_priority_from_env(val))
+    elif attr == 'wait_command':
+        return int(val)
+    elif attr in ('require_confirmation', 'no_colors'):
+        return val.lower() == 'true'
+    else:
+        return val
+
+
+def _settings_from_env():
+    """Loads settings from env."""
+    return {attr: _val_from_env(env, attr)
+            for env, attr in ENV_TO_ATTR.items()
+            if env in os.environ}
+
+
+def get_settings(user_dir):
+    """Returns settings filled with values from `settings.py` and env."""
+    conf = copy(DEFAULT_SETTINGS)
+    try:
+        conf.update(_settings_from_file(user_dir))
+    except Exception:
+        logs.exception("Can't load settings from file",
+                       sys.exc_info(),
+                       types.Settings(conf))
+
+    try:
+        conf.update(_settings_from_env())
+    except Exception:
+        logs.exception("Can't load settings from env",
+                       sys.exc_info(),
+                       types.Settings(conf))
+
+    if not isinstance(conf['rules'], types.RulesNamesList):
+        conf['rules'] = types.RulesNamesList(conf['rules'])
+
+    return types.Settings(conf)
+
+
+def initialize_settings_file(user_dir):
+    settings_path = user_dir.joinpath('settings.py')
+    if not settings_path.is_file():
+        with settings_path.open(mode='w') as settings_file:
+            settings_file.write(SETTINGS_HEADER)
+            for setting in DEFAULT_SETTINGS.items():
+                settings_file.write(u'# {} = {}\n'.format(*setting))

thefuck/logs.py

@@ -0,0 +1,54 @@
+import sys
+from traceback import format_exception
+import colorama
+
+
+def color(color_, settings):
+    """Utility for ability to disabling colored output."""
+    if settings.no_colors:
+        return ''
+    else:
+        return color_
+
+
+def exception(title, exc_info, settings):
+    sys.stderr.write(
+        u'{warn}[WARN] {title}:{reset}\n{trace}'
+        u'{warn}----------------------------{reset}\n\n'.format(
+            warn=color(colorama.Back.RED + colorama.Fore.WHITE
+                       + colorama.Style.BRIGHT, settings),
+            reset=color(colorama.Style.RESET_ALL, settings),
+            title=title,
+            trace=''.join(format_exception(*exc_info))))
+
+
+def rule_failed(rule, exc_info, settings):
+    exception('Rule {}'.format(rule.name), exc_info, settings)
+
+
+def show_command(new_command, side_effect, settings):
+    sys.stderr.write('{bold}{command}{side_effect}{reset}\n'.format(
+        command=new_command,
+        side_effect='*' if side_effect else '',
+        bold=color(colorama.Style.BRIGHT, settings),
+        reset=color(colorama.Style.RESET_ALL, settings)))
+
+
+def confirm_command(new_command, side_effect, settings):
+    sys.stderr.write(
+        '{bold}{command}{side_effect}{reset} '
+        '[{green}enter{reset}/{red}ctrl+c{reset}]'.format(
+            command=new_command,
+            side_effect='*' if side_effect else '',
+            bold=color(colorama.Style.BRIGHT, settings),
+            green=color(colorama.Fore.GREEN, settings),
+            red=color(colorama.Fore.RED, settings),
+            reset=color(colorama.Style.RESET_ALL, settings)))
+    sys.stderr.flush()
+
+
+def failed(msg, settings):
+    sys.stderr.write('{red}{msg}{reset}\n'.format(
+        msg=msg,
+        red=color(colorama.Fore.RED, settings),
+        reset=color(colorama.Style.RESET_ALL, settings)))

thefuck/main.py

@@ -1,16 +1,13 @@
-from collections import namedtuple
 from imp import load_source
 from pathlib import Path
 from os.path import expanduser
 from subprocess import Popen, PIPE
 import os
 import sys
-from traceback import format_exception
 from psutil import Process, TimeoutExpired
-
-
-Command = namedtuple('Command', ('script', 'stdout', 'stderr'))
-Rule = namedtuple('Rule', ('name', 'match', 'get_new_command'))
+import colorama
+import six
+from . import logs, conf, types, shells
 
 
 def setup_user_dir():
@@ -19,43 +16,38 @@ def setup_user_dir():
     rules_dir = user_dir.joinpath('rules')
     if not rules_dir.is_dir():
         rules_dir.mkdir(parents=True)
-    user_dir.joinpath('settings.py').touch()
+    conf.initialize_settings_file(user_dir)
     return user_dir
 
 
-def get_settings(user_dir):
-    """Returns prepared settings module."""
-    settings = load_source('settings',
-                           str(user_dir.joinpath('settings.py')))
-    settings.__dict__.setdefault('rules', None)
-    settings.__dict__.setdefault('wait_command', 3)
-    settings.__dict__.setdefault('require_confirmation', False)
-    return settings
-
-
-def is_rule_enabled(settings, rule):
-    """Returns `True` when rule mentioned in `rules` or `rules`
-    isn't defined.
-
-    """
-    return settings.rules is None or rule.name[:-3] in settings.rules
-
-
 def load_rule(rule):
     """Imports rule module and returns it."""
     rule_module = load_source(rule.name[:-3], str(rule))
-    return Rule(rule.name[:-3], rule_module.match,
-                rule_module.get_new_command)
+    return types.Rule(rule.name[:-3], rule_module.match,
+                      rule_module.get_new_command,
+                      getattr(rule_module, 'enabled_by_default', True),
+                      getattr(rule_module, 'side_effect', None),
+                      getattr(rule_module, 'priority', conf.DEFAULT_PRIORITY))
+
+
+def _get_loaded_rules(rules, settings):
+    """Yields all available rules."""
+    for rule in rules:
+        if rule.name != '__init__.py':
+            loaded_rule = load_rule(rule)
+            if loaded_rule in settings.rules:
+                yield loaded_rule
 
 
 def get_rules(user_dir, settings):
     """Returns all enabled rules."""
-    bundled = Path(__file__).parent\
-                            .joinpath('rules')\
-                            .glob('*.py')
+    bundled = Path(__file__).parent \
+        .joinpath('rules') \
+        .glob('*.py')
     user = user_dir.joinpath('rules').glob('*.py')
-    return [load_rule(rule) for rule in sorted(list(bundled)) + list(user)
-            if rule.name != '__init__.py' and is_rule_enabled(settings, rule)]
+    rules = _get_loaded_rules(sorted(bundled) + sorted(user), settings)
+    return sorted(rules, key=lambda rule: settings.priority.get(
+        rule.name, rule.priority))
 
 
 def wait_output(settings, popen):
@@ -70,7 +62,7 @@ def wait_output(settings, popen):
         proc.wait(settings.wait_command)
         return True
     except TimeoutExpired:
-        for child in proc.get_children(recursive=True):
+        for child in proc.children(recursive=True):
             child.kill()
         proc.kill()
         return False
@@ -78,7 +70,7 @@ def wait_output(settings, popen):
 
 def get_command(settings, args):
     """Creates command from `args` and executes it."""
-    if sys.version_info[0] < 3:
+    if six.PY2:
         script = ' '.join(arg.decode('utf-8') for arg in args[1:])
     else:
         script = ' '.join(args[1:])
@@ -86,11 +78,12 @@ def get_command(settings, args):
     if not script:
         return
 
+    script = shells.from_shell(script)
     result = Popen(script, shell=True, stdout=PIPE, stderr=PIPE,
                    env=dict(os.environ, LANG='C'))
     if wait_output(settings, result):
-        return Command(script, result.stdout.read().decode('utf-8'),
-                       result.stderr.read().decode('utf-8'))
+        return types.Command(script, result.stdout.read().decode('utf-8'),
+                             result.stderr.read().decode('utf-8'))
 
 
 def get_matched_rule(command, rules, settings):
@@ -100,52 +93,45 @@ def get_matched_rule(command, rules, settings):
             if rule.match(command, settings):
                 return rule
         except Exception:
-            sys.stderr.write(u'[WARN] {}: {}---------------------\n\n'.format(
-                rule.name, ''.join(format_exception(*sys.exc_info()))))
+            logs.rule_failed(rule, sys.exc_info(), settings)
 
 
-def confirm(new_command, settings):
+def confirm(new_command, side_effect, settings):
     """Returns `True` when running of new command confirmed."""
     if not settings.require_confirmation:
-        sys.stderr.write(new_command + '\n')
+        logs.show_command(new_command, side_effect, settings)
         return True
 
-    sys.stderr.write(new_command + ' [Enter/Ctrl+C]')
-    sys.stderr.flush()
+    logs.confirm_command(new_command, side_effect, settings)
     try:
         sys.stdin.read(1)
         return True
     except KeyboardInterrupt:
-        sys.stderr.write('Aborted\n')
+        logs.failed('Aborted', settings)
         return False
 
 
 def run_rule(rule, command, settings):
     """Runs command from rule for passed command."""
-    new_command = rule.get_new_command(command, settings)
-    if confirm(new_command, settings):
+    new_command = shells.to_shell(rule.get_new_command(command, settings))
+    if confirm(new_command, rule.side_effect, settings):
+        if rule.side_effect:
+            rule.side_effect(command, settings)
+        shells.put_to_history(new_command)
         print(new_command)
 
 
-def is_second_run(command):
-    """Is it the second run of `fuck`?"""
-    return command.script.startswith('fuck')
-
-
 def main():
+    colorama.init()
     user_dir = setup_user_dir()
-    settings = get_settings(user_dir)
+    settings = conf.get_settings(user_dir)
 
     command = get_command(settings, sys.argv)
     if command:
-        if is_second_run(command):
-            print("echo Can't fuck twice")
-            return
-
         rules = get_rules(user_dir, settings)
         matched_rule = get_matched_rule(command, rules, settings)
         if matched_rule:
             run_rule(matched_rule, command, settings)
             return
 
-    print('echo No fuck given')
+    logs.failed('No fuck given', settings)

thefuck/rules/apt_get.py

@@ -0,0 +1,27 @@
+from thefuck import shells
+from thefuck.utils import sudo_support
+
+try:
+    import CommandNotFound
+except ImportError:
+    enabled_by_default = False
+
+@sudo_support
+def match(command, settings):
+    if 'not found' in command.stderr:
+        try:
+            c = CommandNotFound.CommandNotFound()
+            pkgs = c.getPackages(command.script.split(" ")[0])
+            name, _ = pkgs[0]
+            return True
+        except IndexError:
+            # IndexError is thrown when no matching package is found
+            return False
+
+@sudo_support
+def get_new_command(command, settings):
+    c = CommandNotFound.CommandNotFound()
+    pkgs = c.getPackages(command.script.split(" ")[0])
+    name, _ = pkgs[0]
+    formatme = shells.and_('sudo apt-get install {}', '{}')
+    return formatme.format(name, command.script)

thefuck/rules/brew_install.py

@@ -0,0 +1,42 @@
+import difflib
+import os
+import re
+from subprocess import check_output
+
+# Formulars are base on each local system's status
+brew_formulas = []
+try:
+    brew_path_prefix = check_output(['brew', '--prefix'],
+                                    universal_newlines=True).strip()
+    brew_formula_path = brew_path_prefix + '/Library/Formula'
+
+    for file_name in os.listdir(brew_formula_path):
+        if file_name.endswith('.rb'):
+            brew_formulas.append(file_name.replace('.rb', ''))
+except:
+    pass
+
+
+def _get_similar_formulars(formula_name):
+    return difflib.get_close_matches(formula_name, brew_formulas, 1, 0.85)
+
+
+def match(command, settings):
+    is_proper_command = ('brew install' in command.script and
+                         'No available formula' in command.stderr)
+
+    has_possible_formulas = False
+    if is_proper_command:
+        formula = re.findall(r'Error: No available formula for ([a-z]+)',
+                             command.stderr)[0]
+        has_possible_formulas = len(_get_similar_formulars(formula)) > 0
+
+    return has_possible_formulas
+
+
+def get_new_command(command, settings):
+    not_exist_formula = re.findall(r'Error: No available formula for ([a-z]+)',
+                                   command.stderr)[0]
+    exist_formula = _get_similar_formulars(not_exist_formula)[0]
+
+    return command.script.replace(not_exist_formula, exist_formula, 1)

thefuck/rules/brew_unknown_command.py

@@ -0,0 +1,103 @@
+import difflib
+import os
+import re
+import subprocess
+
+
+BREW_CMD_PATH = '/Library/Homebrew/cmd'
+TAP_PATH = '/Library/Taps'
+TAP_CMD_PATH = '/%s/%s/cmd'
+
+
+def _get_brew_path_prefix():
+    """To get brew path"""
+    try:
+        return subprocess.check_output(['brew', '--prefix'],
+                                       universal_newlines=True).strip()
+    except:
+        return None
+
+
+def _get_brew_commands(brew_path_prefix):
+    """To get brew default commands on local environment"""
+    brew_cmd_path = brew_path_prefix + BREW_CMD_PATH
+
+    commands = [name.replace('.rb', '') for name in os.listdir(brew_cmd_path)
+                if name.endswith('.rb')]
+
+    return commands
+
+
+def _get_brew_tap_specific_commands(brew_path_prefix):
+    """To get tap's specific commands
+    https://github.com/Homebrew/homebrew/blob/master/Library/brew.rb#L115"""
+    commands = []
+    brew_taps_path = brew_path_prefix + TAP_PATH
+
+    for user in _get_directory_names_only(brew_taps_path):
+        taps = _get_directory_names_only(brew_taps_path + '/%s' % user)
+
+        # Brew Taps's naming rule
+        # https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/brew-tap.md#naming-conventions-and-limitations
+        taps = (tap for tap in taps if tap.startswith('homebrew-'))
+        for tap in taps:
+            tap_cmd_path = brew_taps_path + TAP_CMD_PATH % (user, tap)
+
+            if os.path.isdir(tap_cmd_path):
+                commands += (name.replace('brew-', '').replace('.rb', '')
+                             for name in os.listdir(tap_cmd_path)
+                             if _is_brew_tap_cmd_naming(name))
+
+    return commands
+
+
+def _is_brew_tap_cmd_naming(name):
+    if name.startswith('brew-') and name.endswith('.rb'):
+        return True
+
+    return False
+
+
+def _get_directory_names_only(path):
+    return [d for d in os.listdir(path)
+            if os.path.isdir(os.path.join(path, d))]
+
+
+brew_path_prefix = _get_brew_path_prefix()
+
+# Failback commands for testing (Based on Homebrew 0.9.5)
+brew_commands = ['info', 'home', 'options', 'install', 'uninstall',
+                 'search', 'list', 'update', 'upgrade', 'pin', 'unpin',
+                 'doctor', 'create', 'edit']
+
+if brew_path_prefix:
+    try:
+        brew_commands = _get_brew_commands(brew_path_prefix) \
+                        + _get_brew_tap_specific_commands(brew_path_prefix)
+    except OSError:
+        pass
+
+
+def _get_similar_commands(command):
+    return difflib.get_close_matches(command, brew_commands)
+
+
+def match(command, settings):
+    is_proper_command = ('brew' in command.script and
+                         'Unknown command' in command.stderr)
+
+    has_possible_commands = False
+    if is_proper_command:
+        broken_cmd = re.findall(r'Error: Unknown command: ([a-z]+)',
+                                command.stderr)[0]
+        has_possible_commands = len(_get_similar_commands(broken_cmd)) > 0
+
+    return has_possible_commands
+
+
+def get_new_command(command, settings):
+    broken_cmd = re.findall(r'Error: Unknown command: ([a-z]+)',
+                            command.stderr)[0]
+    new_cmd = _get_similar_commands(broken_cmd)[0]
+
+    return command.script.replace(broken_cmd, new_cmd, 1)

thefuck/rules/brew_upgrade.py

@@ -0,0 +1,14 @@
+# Appends --all to the brew upgrade command
+# 
+# Example:
+# > brew upgrade
+# Warning: brew upgrade with no arguments will change behaviour soon!
+# It currently upgrades all formula but this will soon change to require '--all'.
+#
+# 
+
+def match(command, settings):
+    return (command.script == 'brew upgrade')
+
+def get_new_command(command, settings):
+    return command.script + ' --all'

thefuck/rules/cargo.py

@@ -0,0 +1,6 @@
+def match(command, settings):
+    return command.script == 'cargo'
+
+
+def get_new_command(command, settings):
+    return 'cargo build'

thefuck/rules/cargo_no_command.py

@@ -0,0 +1,14 @@
+import re
+
+
+def match(command, settings):
+    return ('cargo' in command.script
+            and 'No such subcommand' in command.stderr
+            and 'Did you mean' in command.stderr)
+
+
+def get_new_command(command, settings):
+    broken = command.script.split()[1]
+    fix = re.findall(r'Did you mean `([^`]*)`', command.stderr)[0]
+
+    return command.script.replace(broken, fix, 1)

thefuck/rules/cd_correction.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+__author__ = "mmussomele"
+
+"""Attempts to spellcheck and correct failed cd commands"""
+
+import os
+from difflib import get_close_matches
+from thefuck.utils import sudo_support
+from thefuck.rules import cd_mkdir
+
+MAX_ALLOWED_DIFF = 0.6
+
+
+def _get_sub_dirs(parent):
+    """Returns a list of the child directories of the given parent directory"""
+    return [child for child in os.listdir(parent) if os.path.isdir(os.path.join(parent, child))]
+
+
+@sudo_support
+def match(command, settings):
+    """Match function copied from cd_mkdir.py"""
+    return (command.script.startswith('cd ')
+            and ('no such file or directory' in command.stderr.lower()
+                 or 'cd: can\'t cd to' in command.stderr.lower()))
+
+
+@sudo_support
+def get_new_command(command, settings):
+    """
+    Attempt to rebuild the path string by spellchecking the directories.
+    If it fails (i.e. no directories are a close enough match), then it 
+    defaults to the rules of cd_mkdir. 
+    Change sensitivity by changing MAX_ALLOWED_DIFF. Default value is 0.6
+    """
+    dest = command.script.split()[1].split(os.sep)
+    if dest[-1] == '':
+        dest = dest[:-1]
+    cwd = os.getcwd()
+    for directory in dest:
+        if directory == ".":
+            continue
+        elif directory == "..":
+            cwd = os.path.split(cwd)[0]
+            continue
+        best_matches = get_close_matches(directory, _get_sub_dirs(cwd), cutoff=MAX_ALLOWED_DIFF)
+        if best_matches:
+            cwd = os.path.join(cwd, best_matches[0])
+        else:
+            return cd_mkdir.get_new_command(command, settings)
+    return 'cd "{0}"'.format(cwd)
+
+
+enabled_by_default = True

thefuck/rules/cd_mkdir.py

@@ -0,0 +1,16 @@
+import re
+from thefuck import shells
+from thefuck.utils import sudo_support
+
+
+@sudo_support
+def match(command, settings):
+    return (command.script.startswith('cd ')
+        and ('no such file or directory' in command.stderr.lower()
+            or 'cd: can\'t cd to' in command.stderr.lower()))
+
+
+@sudo_support
+def get_new_command(command, settings):
+    repl = shells.and_('mkdir -p \\1', 'cd \\1')
+    return re.sub(r'^cd (.*)', repl, command.script)

thefuck/rules/composer_not_command.py

@@ -0,0 +1,15 @@
+import re
+
+
+def match(command, settings):
+    return ('composer' in command.script
+            and ('did you mean this?' in command.stderr.lower()
+                 or 'did you mean one of these?' in command.stderr.lower()))
+
+
+def get_new_command(command, settings):
+    broken_cmd = re.findall(r"Command \"([^']*)\" is not defined", command.stderr)[0]
+    new_cmd = re.findall(r'Did you mean this\?[^\n]*\n\s*([^\n]*)', command.stderr)
+    if not new_cmd:
+        new_cmd = re.findall(r'Did you mean one of these\?[^\n]*\n\s*([^\n]*)', command.stderr)
+    return command.script.replace(broken_cmd, new_cmd[0].strip(), 1)

thefuck/rules/cp_omitting_directory.py

@@ -1,10 +1,13 @@
 import re
+from thefuck.utils import sudo_support
 
 
+@sudo_support
 def match(command, settings):
     return command.script.startswith('cp ') \
         and 'cp: omitting directory' in command.stderr.lower()
 
 
+@sudo_support
 def get_new_command(command, settings):
     return re.sub(r'^cp', 'cp -a', command.script)

thefuck/rules/cpp11.py

@@ -0,0 +1,9 @@
+def match(command, settings):
+    return (('g++' in command.script or 'clang++' in command.script) and
+            ('This file requires compiler and library support for the '
+             'ISO C++ 2011 standard.' in command.stderr or
+             '-Wc++11-extensions' in command.stderr))
+
+
+def get_new_command(command, settings):
+    return command.script + ' -std=c++11'

thefuck/rules/django_south_ghost.py

@@ -0,0 +1,8 @@
+def match(command, settings):
+    return 'manage.py' in command.script and \
+           'migrate' in command.script \
+           and 'or pass --delete-ghost-migrations' in command.stderr
+
+
+def get_new_command(command, settings):
+    return u'{} --delete-ghost-migrations'.format(command.script)

thefuck/rules/django_south_merge.py

@@ -0,0 +1,8 @@
+def match(command, settings):
+    return 'manage.py' in command.script and \
+           'migrate' in command.script \
+           and '--merge: will just attempt the migration' in command.stderr
+
+
+def get_new_command(command, settings):
+    return u'{} --merge'.format(command.script)

thefuck/rules/dry.py

@@ -0,0 +1,12 @@
+def match(command, settings):
+    split_command = command.script.split()
+
+    return len(split_command) >= 2 and split_command[0] == split_command[1]
+
+
+def get_new_command(command, settings):
+    return command.script[command.script.find(' ')+1:]
+
+# it should be rare enough to actually have to type twice the same word, so
+# this rule can have a higher priority to come before things like "cd cd foo"
+priority = 900

thefuck/rules/fix_alt_space.py

@@ -0,0 +1,15 @@
+# -*- encoding: utf-8 -*-
+
+import re
+from thefuck.utils import sudo_support
+
+
+@sudo_support
+def match(command, settings):
+    return ('command not found' in command.stderr.lower()
+            and u' ' in command.script)
+
+
+@sudo_support
+def get_new_command(command, settings):
+    return re.sub(u' ', ' ', command.script)

thefuck/rules/git_add.py

@@ -0,0 +1,17 @@
+import re
+from thefuck import shells
+
+
+def match(command, settings):
+    return ('git' in command.script
+            and 'did not match any file(s) known to git.' in command.stderr
+            and "Did you forget to 'git add'?" in command.stderr)
+
+
+def get_new_command(command, settings):
+    missing_file = re.findall(
+            r"error: pathspec '([^']*)' "
+            "did not match any file\(s\) known to git.", command.stderr)[0]
+
+    formatme = shells.and_('git add -- {}', '{}')
+    return formatme.format(missing_file, command.script)

thefuck/rules/git_branch_list.py

@@ -0,0 +1,10 @@
+from thefuck import shells
+
+
+def match(command, settings):
+    # catches "git branch list" in place of "git branch"
+    return command.script.split() == 'git branch list'.split()
+
+
+def get_new_command(command, settings):
+    return shells.and_('git branch --delete list', 'git branch')

thefuck/rules/git_checkout.py

@@ -0,0 +1,17 @@
+import re
+from thefuck import shells
+
+
+def match(command, settings):
+    return ('git' in command.script
+            and 'did not match any file(s) known to git.' in command.stderr
+            and "Did you forget to 'git add'?" not in command.stderr)
+
+
+def get_new_command(command, settings):
+    missing_file = re.findall(
+            r"error: pathspec '([^']*)' "
+            "did not match any file\(s\) known to git.", command.stderr)[0]
+
+    formatme = shells.and_('git branch {}', '{}')
+    return formatme.format(missing_file, command.script)

thefuck/rules/git_diff_staged.py

@@ -0,0 +1,6 @@
+def match(command, settings):
+    return command.script.startswith('git d')
+
+
+def get_new_command(command, settings):
+    return '{} --staged'.format(command.script)

thefuck/rules/git_pull.py

@@ -0,0 +1,15 @@
+from thefuck import shells
+
+
+def match(command, settings):
+    return ('git' in command.script
+            and 'pull' in command.script
+            and 'set-upstream' in command.stderr)
+
+
+def get_new_command(command, settings):
+    line = command.stderr.split('\n')[-3].strip()
+    branch = line.split(' ')[-1]
+    set_upstream = line.replace('<remote>', 'origin')\
+                       .replace('<branch>', branch)
+    return shells.and_(set_upstream, command.script)

thefuck/rules/git_stash.py

@@ -0,0 +1,12 @@
+from thefuck import shells
+
+
+def match(command, settings):
+    # catches "Please commit or stash them" and "Please, commit your changes or
+    # stash them before you can switch branches."
+    return 'git' in command.script and 'or stash them' in command.stderr
+
+
+def get_new_command(command, settings):
+    formatme = shells.and_('git stash', '{}')
+    return formatme.format(command.script)

thefuck/rules/go_run.py

@@ -0,0 +1,14 @@
+# Appends .go when compiling go files
+# 
+# Example:
+# > go run foo
+# error: go run: no go files listed
+#
+# 
+
+def match(command, settings):
+    return (command.script.startswith ('go run ')
+            and not command.script.endswith('.go'))
+
+def get_new_command(command, settings):
+    return command.script + '.go'

thefuck/rules/grep_recursive.py

@@ -0,0 +1,7 @@
+def match(command, settings):
+    return (command.script.startswith('grep')
+            and 'is a directory' in command.stderr.lower())
+
+
+def get_new_command(command, settings):
+    return 'grep -r {}'.format(command.script[5:])

thefuck/rules/has_exists_script.py

@@ -1,11 +1,14 @@
 import os
+from thefuck.utils import sudo_support
 
 
+@sudo_support
 def match(command, settings):
     return os.path.exists(command.script.split()[0]) \
         and 'command not found' in command.stderr
 
 
+@sudo_support
 def get_new_command(command, settings):
     return u'./{}'.format(command.script)
 

thefuck/rules/java.py

@@ -0,0 +1,14 @@
+# Fixes common java command mistake
+#
+# Example:
+# > java foo.java
+# Error: Could not find or load main class foo.java
+
+
+def match(command, settings):
+    return (command.script.startswith('java ')
+            and command.script.endswith('.java'))
+
+
+def get_new_command(command, settings):
+    return command.script[:-5]

thefuck/rules/javac.py

@@ -0,0 +1,15 @@
+# Appends .java when compiling java files
+#
+# Example:
+# > javac foo
+# error: Class names, 'foo', are only accepted if annotation
+# processing is explicitly requested
+ 
+
+def match(command, settings):
+    return (command.script.startswith('javac ')
+            and not command.script.endswith('.java'))
+
+
+def get_new_command(command, settings):
+    return command.script + '.java'

thefuck/rules/lein_not_task.py

@@ -1,12 +1,15 @@
 import re
+from thefuck.utils import sudo_support
 
 
+@sudo_support
 def match(command, settings):
     return (command.script.startswith('lein')
             and "is not a task. See 'lein help'" in command.stderr
             and 'Did you mean this?' in command.stderr)
 
 
+@sudo_support
 def get_new_command(command, settings):
     broken_cmd = re.findall(r"'([^']*)' is not a task",
                             command.stderr)[0]

thefuck/rules/ls_lah.py

@@ -0,0 +1,10 @@
+def match(command, settings):
+    return (command.script == 'ls'
+            or command.script.startswith('ls ')
+            and not ('ls -' in command.script))
+
+
+def get_new_command(command, settings):
+    command = command.script.split(' ')
+    command[0] = 'ls -lah'
+    return ' '.join(command)

thefuck/rules/man.py

@@ -0,0 +1,13 @@
+def match(command, settings):
+    return command.script.strip().startswith('man ')
+
+
+def get_new_command(command, settings):
+    if '3' in command.script:
+        return command.script.replace("3", "2")
+    if '2' in command.script:
+        return command.script.replace("2", "3")
+
+    split_cmd = command.script.split()
+    split_cmd.insert(1, ' 3 ')
+    return "".join(split_cmd)

thefuck/rules/man_no_space.py

@@ -0,0 +1,9 @@
+def match(command, settings):
+    return (command.script.startswith(u'man')
+            and u'command not found' in command.stderr.lower())
+
+
+def get_new_command(command, settings):
+    return u'man {}'.format(command.script[3:])
+
+priority = 2000

thefuck/rules/mercurial.py

@@ -0,0 +1,34 @@
+import re
+
+from difflib import get_close_matches
+
+
+def extract_possisiblities(command):
+    possib = re.findall(r'\n\(did you mean one of ([^\?]+)\?\)', command.stderr)
+    if possib:
+        return possib[0].split(', ')
+    possib = re.findall(r'\n    ([^$]+)$', command.stderr)
+    if possib:
+        return possib[0].split(' ')
+    return possib
+
+
+def match(command, settings):
+    return (command.script.startswith('hg ')
+            and ('hg: unknown command' in command.stderr
+                 and '(did you mean one of ' in command.stderr
+                 or "hg: command '" in command.stderr
+                 and "' is ambiguous:" in command.stderr
+                 )
+            )
+
+
+def get_new_command(command, settings):
+    script = command.script.split(' ')
+    possisiblities = extract_possisiblities(command)
+    matches = get_close_matches(script[1], possisiblities)
+    if matches:
+        script[1] = matches[0]
+    else:
+        script[1] = possisiblities[0]
+    return ' '.join(script)

thefuck/rules/mkdir_p.py

@@ -1,9 +1,13 @@
 import re
+from thefuck.utils import sudo_support
 
+
+@sudo_support
 def match(command, settings):
     return ('mkdir' in command.script
             and 'No such file or directory' in command.stderr)
 
 
+@sudo_support
 def get_new_command(command, settings):
     return re.sub('^mkdir (.*)', 'mkdir -p \\1', command.script)

thefuck/rules/no_command.py

@@ -1,6 +1,8 @@
 from difflib import get_close_matches
 import os
 from pathlib import Path
+from thefuck.utils import sudo_support
+from thefuck.shells import thefuck_alias, get_aliases
 
 
 def _safe(fn, fallback):
@@ -10,21 +12,28 @@ def _safe(fn, fallback):
         return fallback
 
 
-def _get_all_bins():
+def _get_all_callables():
+    tf_alias = thefuck_alias()
     return [exe.name
             for path in os.environ.get('PATH', '').split(':')
             for exe in _safe(lambda: list(Path(path).iterdir()), [])
-            if not _safe(exe.is_dir, True)]
+            if not _safe(exe.is_dir, True)] + [
+                alias for alias in get_aliases() if alias != tf_alias]
 
 
+@sudo_support
 def match(command, settings):
     return 'not found' in command.stderr and \
            bool(get_close_matches(command.script.split(' ')[0],
-                                  _get_all_bins()))
+                                  _get_all_callables()))
 
 
+@sudo_support
 def get_new_command(command, settings):
     old_command = command.script.split(' ')[0]
     new_command = get_close_matches(old_command,
-                                    _get_all_bins())[0]
+                                    _get_all_callables())[0]
     return ' '.join([new_command] + command.script.split(' ')[1:])
+
+
+priority = 3000